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cs46xx.c：源码内容

}
return -ENODEV;
case SNDCTL_DSP_GETISPACE:
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
state = (struct cs_state *)card->states[0];
if(state)
{
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
abinfo.fragsize = dmabuf->fragsize/dmabuf->divisor;
abinfo.bytes = dmabuf->count/dmabuf->divisor;
abinfo.fragstotal = dmabuf->numfrag;
abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
spin_unlock_irqrestore(&state->card->lock, flags);
return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
}
return -ENODEV;
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
return 0;
case SNDCTL_DSP_GETCAPS:
return put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP,
(int *)arg);
case SNDCTL_DSP_GETTRIGGER:
val = 0;
CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()+n") );
if (file->f_mode & FMODE_WRITE)
{
state = (struct cs_state *)card->states[1];
if(state)
{
dmabuf = &state->dmabuf;
if(dmabuf->enable & DAC_RUNNING)
val |= PCM_ENABLE_INPUT;
}
}
if (file->f_mode & FMODE_READ)
{
if(state)
{
state = (struct cs_state *)card->states[0];
dmabuf = &state->dmabuf;
if(dmabuf->enable & ADC_RUNNING)
val |= PCM_ENABLE_OUTPUT;
}
}
CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()- val=0x%xn",val) );
return put_user(val, (int *)arg);
case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, (int *)arg))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
state = (struct cs_state *)card->states[0];
if(state)
{
dmabuf = &state->dmabuf;
if (val & PCM_ENABLE_INPUT) {
if (!dmabuf->ready && (ret = prog_dmabuf(state)))
return ret;
start_adc(state);
} else
stop_adc(state);
}
}
if (file->f_mode & FMODE_WRITE) {
state = (struct cs_state *)card->states[1];
if(state)
{
dmabuf = &state->dmabuf;
if (val & PCM_ENABLE_OUTPUT) {
if (!dmabuf->ready && (ret = prog_dmabuf(state)))
return ret;
start_dac(state);
} else
stop_dac(state);
}
}
return 0;
case SNDCTL_DSP_GETIPTR:
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
state = (struct cs_state *)card->states[0];
if(state)
{
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
cinfo.bytes = dmabuf->total_bytes/dmabuf->divisor;
cinfo.blocks = dmabuf->count/dmabuf->divisor >> dmabuf->fragshift;
cinfo.ptr = dmabuf->hwptr/dmabuf->divisor;
spin_unlock_irqrestore(&state->card->lock, flags);
return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
}
return -ENODEV;
case SNDCTL_DSP_GETOPTR:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
state = (struct cs_state *)card->states[1];
if(state)
{
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
cinfo.bytes = dmabuf->total_bytes;
if (dmabuf->mapped)
{
cinfo.blocks = (cinfo.bytes >> dmabuf->fragshift)
- dmabuf->blocks;
CS_DBGOUT(CS_PARMS, 8,
printk("total_bytes=%d blocks=%d dmabuf->blocks=%dn",
cinfo.bytes,cinfo.blocks,dmabuf->blocks) );
dmabuf->blocks = cinfo.bytes >> dmabuf->fragshift;
}
else
{
cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
}
cinfo.ptr = dmabuf->hwptr;
CS_DBGOUT(CS_PARMS, 4, printk(
"cs46xx: GETOPTR bytes=%d blocks=%d ptr=%dn",
cinfo.bytes,cinfo.blocks,cinfo.ptr) );
spin_unlock_irqrestore(&state->card->lock, flags);
return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
}
return -ENODEV;
case SNDCTL_DSP_SETDUPLEX:
return 0;
case SNDCTL_DSP_GETODELAY:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
state = (struct cs_state *)card->states[1];
if(state)
{
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
val = dmabuf->count;
spin_unlock_irqrestore(&state->card->lock, flags);
}
else
val = 0;
return put_user(val, (int *)arg);
case SOUND_PCM_READ_RATE:
if(file->f_mode & FMODE_READ)
state = (struct cs_state *)card->states[0];
else
state = (struct cs_state *)card->states[1];
if(state)
{
dmabuf = &state->dmabuf;
return put_user(dmabuf->rate, (int *)arg);
}
return put_user(0, (int *)arg);
case SOUND_PCM_READ_CHANNELS:
if(file->f_mode & FMODE_READ)
state = (struct cs_state *)card->states[0];
else
state = (struct cs_state *)card->states[1];
if(state)
{
dmabuf = &state->dmabuf;
return put_user((dmabuf->fmt & CS_FMT_STEREO) ? 2 : 1,
(int *)arg);
}
return put_user(0, (int *)arg);
case SOUND_PCM_READ_BITS:
if(file->f_mode & FMODE_READ)
state = (struct cs_state *)card->states[0];
else
state = (struct cs_state *)card->states[1];
if(state)
{
dmabuf = &state->dmabuf;
return put_user((dmabuf->fmt & CS_FMT_16BIT) ?
AFMT_S16_LE : AFMT_U8, (int *)arg);
}
return put_user(0, (int *)arg);
case SNDCTL_DSP_MAPINBUF:
case SNDCTL_DSP_MAPOUTBUF:
case SNDCTL_DSP_SETSYNCRO:
case SOUND_PCM_WRITE_FILTER:
case SOUND_PCM_READ_FILTER:
return -EINVAL;
}
return -EINVAL;
}
/*
* AMP control - null AMP
*/
static void amp_none(struct cs_card *card, int change)
{
}
/*
* Crystal EAPD mode
*/
static void amp_voyetra(struct cs_card *card, int change)
{
/* Manage the EAPD bit on the Crystal 4297
and the Analog AD1885 */
int old=card->amplifier;
card->amplifier+=change;
if(card->amplifier && !old)
{
/* Turn the EAPD amp on */
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL,
cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) |
0x8000);
}
else if(old && !card->amplifier)
{
/* Turn the EAPD amp off */
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL,
cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
~0x8000);
}
}
/*
* Game Theatre XP card - EGPIO[2] is used to enable the external amp.
*/
static void amp_hercules(struct cs_card *card, int change)
{
int old=card->amplifier;
if(!card)
{
CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
"cs46xx: amp_hercules() called before initialized.n"));
return;
}
card->amplifier+=change;
if( (card->amplifier && !old) && !(hercules_egpio_disable))
{
CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO
"cs46xx: amp_hercules() external amp enabledn"));
cs461x_pokeBA0(card, BA0_EGPIODR,
EGPIODR_GPOE2); /* enable EGPIO2 output */
cs461x_pokeBA0(card, BA0_EGPIOPTR,
EGPIOPTR_GPPT2); /* open-drain on output */
}
else if(old && !card->amplifier)
{
CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO
"cs46xx: amp_hercules() external amp disabledn"));
cs461x_pokeBA0(card, BA0_EGPIODR, 0); /* disable */
cs461x_pokeBA0(card, BA0_EGPIOPTR, 0); /* disable */
}
}
/*
* Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
* whenever we need to beat on the chip.
*
* The original idea and code for this hack comes from David Kaiser at
* Linuxcare. Perhaps one day Crystal will document their chips well
* enough to make them useful.
*/
static void clkrun_hack(struct cs_card *card, int change)
{
struct pci_dev *acpi_dev;
u16 control;
u8 pp;
unsigned long port;
int old=card->active;
card->active+=change;
acpi_dev = pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
if(acpi_dev == NULL)
return; /* Not a thinkpad thats for sure */
/* Find the control port */
pci_read_config_byte(acpi_dev, 0x41, &pp);
port=pp<<8;
/* Read ACPI port */
control=inw(port+0x10);
/* Flip CLKRUN off while running */
if(!card->active && old)
{
CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO
"cs46xx: clkrun() enable clkrun - change=%d active=%dn",
change,card->active));
outw(control|0x2000, port+0x10);
}
else
{
/*
* sometimes on a resume the bit is set, so always reset the bit.
*/
CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO
"cs46xx: clkrun() disable clkrun - change=%d active=%dn",
change,card->active));
outw(control&~0x2000, port+0x10);
}
}
static int cs_open(struct inode *inode, struct file *file)
{
struct cs_card *card = (struct cs_card *)file->private_data;
struct cs_state *state = NULL;
struct dmabuf *dmabuf = NULL;
struct list_head *entry;
int minor = MINOR(inode->i_rdev);
int ret=0;
unsigned int tmp;
CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()+ file=0x%x %s %sn",
(unsigned)file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "",
file->f_mode & FMODE_READ ? "FMODE_READ" : "") );
list_for_each(entry, &cs46xx_devs)
{
card = list_entry(entry, struct cs_card, list);
if (!((card->dev_audio ^ minor) & ~0xf))
break;
}
if (entry == &cs46xx_devs)
return -ENODEV;
if (!card) {
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
"cs46xx: cs_open(): Error - unable to find audio card structn"));
return -ENODEV;
}
/*
* hardcode state[0] for capture, [1] for playback
*/
if(file->f_mode & FMODE_READ)
{
CS_DBGOUT(CS_WAVE_READ, 2, printk("cs46xx: cs_open() FMODE_READn") );
if (card->states[0] == NULL) {
state = card->states[0] = (struct cs_state *)
kmalloc(sizeof(struct cs_state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
memset(state, 0, sizeof(struct cs_state));
init_MUTEX(&state->sem);
dmabuf = &state->dmabuf;
dmabuf->pbuf = (void *)get_free_page(GFP_KERNEL | GFP_DMA);
if(dmabuf->pbuf==NULL)
{
kfree(state);
card->states[0]=NULL;
return -ENOMEM;
}
}
else
{
state = card->states[0];
if(state->open_mode & FMODE_READ)
return -EBUSY;
}
dmabuf->channel = card->alloc_rec_pcm_channel(card);
if (dmabuf->channel == NULL) {
kfree (card->states[0]);
card->states[0] = NULL;;
return -ENODEV;
}
/* Now turn on external AMP if needed */
state->card = card;
state->card->active_ctrl(state->card,1);
state->card->amplifier_ctrl(state->card,1);
if( (tmp = cs46xx_powerup(card, CS_POWER_ADC)) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs46xx_powerup of ADC failed (0x%x)n",tmp) );
return -EIO;
}
dmabuf->channel->state = state;
/* initialize the virtual channel */
state->virt = 0;
state->magic = CS_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
init_MUTEX(&state->open_sem);
file->private_data = card;
down(&state->open_sem);
/* set default sample format. According to OSS Programmer's Guide /dev/dsp
should be default to unsigned 8-bits, mono, with sample rate 8kHz and
/dev/dspW will accept 16-bits sample */
/* Default input is 8bit mono */
dmabuf->fmt &= ~CS_FMT_MASK;
dmabuf->type = CS_TYPE_ADC;
dmabuf->ossfragshift = 0;
dmabuf->ossmaxfrags = 0;
dmabuf->subdivision = 0;
cs_set_adc_rate(state, 8000);
cs_set_divisor(dmabuf);
state->open_mode |= FMODE_READ;
up(&state->open_sem);
}
if(file->f_mode & FMODE_WRITE)
{
CS_DBGOUT(CS_OPEN, 2, printk("cs46xx: cs_open() FMODE_WRITEn") );
if (card->states[1] == NULL) {
state = card->states[1] = (struct cs_state *)
kmalloc(sizeof(struct cs_state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
memset(state, 0, sizeof(struct cs_state));
init_MUTEX(&state->sem);
dmabuf = &state->dmabuf;
dmabuf->pbuf = (void *)get_free_page(GFP_KERNEL | GFP_DMA);
if(dmabuf->pbuf==NULL)
{
kfree(state);
card->states[1]=NULL;
return -ENOMEM;
}
}
else
{
state = card->states[1];
if(state->open_mode & FMODE_WRITE)
return -EBUSY;
}
dmabuf->channel = card->alloc_pcm_channel(card);
if (dmabuf->channel == NULL) {
kfree (card->states[1]);
card->states[1] = NULL;;
return -ENODEV;
}
/* Now turn on external AMP if needed */
state->card = card;
state->card->active_ctrl(state->card,1);
state->card->amplifier_ctrl(state->card,1);
if( (tmp = cs46xx_powerup(card, CS_POWER_DAC)) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs46xx_powerup of DAC failed (0x%x)n",tmp) );
return -EIO;
}
dmabuf->channel->state = state;
/* initialize the virtual channel */
state->virt = 1;
state->magic = CS_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
init_MUTEX(&state->open_sem);
file->private_data = card;
down(&state->open_sem);
/* set default sample format. According to OSS Programmer's Guide /dev/dsp
should be default to unsigned 8-bits, mono, with sample rate 8kHz and
/dev/dspW will accept 16-bits sample */
/* Default output is 8bit mono. */
dmabuf->fmt &= ~CS_FMT_MASK;
dmabuf->type = CS_TYPE_DAC;
dmabuf->ossfragshift = 0;
dmabuf->ossmaxfrags = 0;
dmabuf->subdivision = 0;
cs_set_dac_rate(state, 8000);
cs_set_divisor(dmabuf);
state->open_mode |= FMODE_WRITE;
up(&state->open_sem);
if((ret = prog_dmabuf(state)))
return ret;
}
MOD_INC_USE_COUNT; /* for 2.2 */
CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()- 0n") );
return 0;
}
static int cs_release(struct inode *inode, struct file *file)
{
struct cs_card *card = (struct cs_card *)file->private_data;
struct dmabuf *dmabuf;
struct cs_state *state;
unsigned int tmp;
CS_DBGOUT(CS_RELEASE | CS_FUNCTION, 2, printk("cs46xx: cs_release()+ file=0x%x %s %sn",
(unsigned)file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "",
file->f_mode & FMODE_READ ? "FMODE_READ" : "") );
if (!(file->f_mode & (FMODE_WRITE | FMODE_READ)))
{
return -EINVAL;
}
state = card->states[1];
if(state)
{
if ( (state->open_mode & FMODE_WRITE) & (file->f_mode & FMODE_WRITE) )
{
CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_WRITEn") );
dmabuf = &state->dmabuf;
cs_clear_tail(state);
drain_dac(state, file->f_flags & O_NONBLOCK);
/* stop DMA state machine and free DMA buffers/channels */
down(&state->open_sem);
stop_dac(state);
dealloc_dmabuf(state);
state->card->free_pcm_channel(state->card, dmabuf->channel->num);
free_page((unsigned long)state->dmabuf.pbuf);
/* we're covered by the open_sem */
up(&state->open_sem);
state->card->states[state->virt] = NULL;
state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
if( (tmp = cs461x_powerdown(card, CS_POWER_DAC, CS_FALSE )) )
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: cs_release_mixdev() powerdown DAC failure (0x%x)n",tmp) );
}
/* Now turn off external AMP if needed */
state->card->amplifier_ctrl(state->card, -1);
state->card->active_ctrl(state->card, -1);
kfree(state);
}
}
state = card->states[0];
if(state)
{
if ( (state->open_mode & FMODE_READ) & (file->f_mode & FMODE_READ) )
{
CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_READn") );
dmabuf = &state->dmabuf;
down(&state->open_sem);
stop_adc(state);
dealloc_dmabuf(state);
state->card->free_pcm_channel(state->card, dmabuf->channel->num);
free_page((unsigned long)state->dmabuf.pbuf);
/* we're covered by the open_sem */
up(&state->open_sem);
state->card->states[state->virt] = NULL;
state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
if( (tmp = cs461x_powerdown(card, CS_POWER_ADC, CS_FALSE )) )
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: cs_release_mixdev() powerdown ADC failure (0x%x)n",tmp) );
}
/* Now turn off external AMP if needed */
state->card->amplifier_ctrl(state->card, -1);
state->card->active_ctrl(state->card, -1);
kfree(state);
}
}
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk("cs46xx: cs_release()- 0n") );
MOD_DEC_USE_COUNT; /* For 2.2 */
return 0;
}
static void printpm(struct cs_card *s)
{
CS_DBGOUT(CS_PM, 9, printk("pm struct:n"));
CS_DBGOUT(CS_PM, 9, printk("flags:0x%x u32CLKCR1_SAVE: 0%x u32SSPMValue: 0x%xn",
(unsigned)s->pm.flags,s->pm.u32CLKCR1_SAVE,s->pm.u32SSPMValue));
CS_DBGOUT(CS_PM, 9, printk("u32PPLVCvalue: 0x%x u32PPRVCvalue: 0x%xn",
s->pm.u32PPLVCvalue,s->pm.u32PPRVCvalue));
CS_DBGOUT(CS_PM, 9, printk("u32FMLVCvalue: 0x%x u32FMRVCvalue: 0x%xn",
s->pm.u32FMLVCvalue,s->pm.u32FMRVCvalue));
CS_DBGOUT(CS_PM, 9, printk("u32GPIORvalue: 0x%x u32JSCTLvalue: 0x%xn",
s->pm.u32GPIORvalue,s->pm.u32JSCTLvalue));
CS_DBGOUT(CS_PM, 9, printk("u32SSCR: 0x%x u32SRCSA: 0x%xn",
s->pm.u32SSCR,s->pm.u32SRCSA));
CS_DBGOUT(CS_PM, 9, printk("u32DacASR: 0x%x u32AdcASR: 0x%xn",
s->pm.u32DacASR,s->pm.u32AdcASR));
CS_DBGOUT(CS_PM, 9, printk("u32DacSR: 0x%x u32AdcSR: 0x%xn",
s->pm.u32DacSR,s->pm.u32AdcSR));
CS_DBGOUT(CS_PM, 9, printk("u32MIDCR_Save: 0x%xn",
s->pm.u32MIDCR_Save));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_powerdown: 0x%x _general_purpose 0x%xn",
s->pm.u32AC97_powerdown,s->pm.u32AC97_general_purpose));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume: 0x%xn",
s->pm.u32AC97_master_volume));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_headphone_volume: 0x%xn",
s->pm.u32AC97_headphone_volume));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume_mono: 0x%xn",
s->pm.u32AC97_master_volume_mono));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_pcm_out_volume: 0x%xn",
s->pm.u32AC97_pcm_out_volume));
CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_play: 0x%x dmabuf_count_play: %dn",
s->pm.dmabuf_swptr_play,s->pm.dmabuf_count_play));
CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_capture: 0x%x dmabuf_count_capture: %dn",
s->pm.dmabuf_swptr_capture,s->pm.dmabuf_count_capture));
}
/****************************************************************************
*
* Suspend - save the ac97 regs, mute the outputs and power down the part.
*
****************************************************************************/
void cs46xx_ac97_suspend(struct cs_card *card)
{
int Count,i;
struct ac97_codec *dev=card->ac97_codec[0];
unsigned int tmp;
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()+n"));
if(card->states[1])
{
stop_dac(card->states[1]);
resync_dma_ptrs(card->states[1]);
}
if(card->states[0])
{
stop_adc(card->states[0]);
resync_dma_ptrs(card->states[0]);
}
for(Count = 0x2, i=0; (Count <= CS46XX_AC97_HIGHESTREGTORESTORE)
&& (i < CS46XX_AC97_NUMBER_RESTORE_REGS);
Count += 2, i++)
{
card->pm.ac97[i] = cs_ac97_get(dev, BA0_AC97_RESET + Count);
}
/*
* Save the ac97 volume registers as well as the current powerdown state.
* Now, mute the all the outputs (master, headphone, and mono), as well
* as the PCM volume, in preparation for powering down the entire part.
card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev,
(u8)BA0_AC97_MASTER_VOLUME);
card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_HEADPHONE_VOLUME);
card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_MASTER_VOLUME_MONO);
card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_PCM_OUT_VOLUME);
*/
/*
* mute the outputs
*/
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000);
/*
* save the registers that cause pops
*/
card->pm.u32AC97_powerdown = (u32)cs_ac97_get(dev, (u8)AC97_POWER_CONTROL);
card->pm.u32AC97_general_purpose = (u32)cs_ac97_get(dev, (u8)BA0_AC97_GENERAL_PURPOSE);
/*
* And power down everything on the AC97 codec.
* well, for now, only power down the DAC/ADC and MIXER VREFON components.
* trouble with removing VREF.
*/
if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON, CS_TRUE )) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs46xx_ac97_suspend() failure (0x%x)n",tmp) );
}
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()-n"));
}
/****************************************************************************
*
* Resume - power up the part and restore its registers..
*
****************************************************************************/
void cs46xx_ac97_resume(struct cs_card *card)
{
int Count,i;
struct ac97_codec *dev=card->ac97_codec[0];
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()+n"));
/*
* First, we restore the state of the general purpose register. This
* contains the mic select (mic1 or mic2) and if we restore this after
* we restore the mic volume/boost state and mic2 was selected at
* suspend time, we will end up with a brief period of time where mic1
* is selected with the volume/boost settings for mic2, causing
* acoustic feedback. So we restore the general purpose register
* first, thereby getting the correct mic selected before we restore
* the mic volume/boost.
*/
cs_ac97_set(dev, (u8)BA0_AC97_GENERAL_PURPOSE,
(u16)card->pm.u32AC97_general_purpose);
/*
* Now, while the outputs are still muted, restore the state of power
* on the AC97 part.
*/
cs_ac97_set(dev, (u8)BA0_AC97_POWERDOWN, (u16)card->pm.u32AC97_powerdown);
mdelay(5 * cs_laptop_wait);
/*
* Restore just the first set of registers, from register number
* 0x02 to the register number that ulHighestRegToRestore specifies.
*/
for( Count = 0x2, i=0;
(Count <= CS46XX_AC97_HIGHESTREGTORESTORE)
&& (i < CS46XX_AC97_NUMBER_RESTORE_REGS);
Count += 2, i++)
{
cs_ac97_set(dev, (u8)(BA0_AC97_RESET + Count), (u16)card->pm.ac97[i]);
}
/* Check if we have to init the amplifier */
if(card->amp_init)
card->amp_init(card);
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()-n"));
}
static int cs46xx_restart_part(struct cs_card *card)
{
struct dmabuf *dmabuf;
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk( "cs46xx: cs46xx_restart_part()+n"));
if(card->states[1])
{
dmabuf = &card->states[1]->dmabuf;
dmabuf->ready = 0;
resync_dma_ptrs(card->states[1]);
cs_set_divisor(dmabuf);
if(__prog_dmabuf(card->states[1]))
{
CS_DBGOUT(CS_PM | CS_ERROR, 1,
printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() dac errorn"));
return -1;
}
cs_set_dac_rate(card->states[1], dmabuf->rate);
}
if(card->states[0])
{
dmabuf = &card->states[0]->dmabuf;
dmabuf->ready = 0;
resync_dma_ptrs(card->states[0]);
cs_set_divisor(dmabuf);
if(__prog_dmabuf(card->states[0]))
{
CS_DBGOUT(CS_PM | CS_ERROR, 1,
printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() adc errorn"));
return -1;
}
cs_set_adc_rate(card->states[0], dmabuf->rate);
}
card->pm.flags |= CS46XX_PM_RESUMED;
if(card->states[0])
start_adc(card->states[0]);
if(card->states[1])
start_dac(card->states[1]);
card->pm.flags |= CS46XX_PM_IDLE;
card->pm.flags &= ~(CS46XX_PM_SUSPENDING | CS46XX_PM_SUSPENDED
| CS46XX_PM_RESUMING | CS46XX_PM_RESUMED);
if(card->states[0])
wake_up(&card->states[0]->dmabuf.wait);
if(card->states[1])
wake_up(&card->states[1]->dmabuf.wait);
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk( "cs46xx: cs46xx_restart_part()-n"));
return 0;
}
static void cs461x_reset(struct cs_card *card);
static void cs461x_proc_stop(struct cs_card *card);
static int cs46xx_suspend(struct cs_card *card, u32 state)
{
unsigned int tmp;
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk("cs46xx: cs46xx_suspend()+ flags=0x%x s=0x%xn",
(unsigned)card->pm.flags,(unsigned)card));
/*
* check the current state, only suspend if IDLE
*/
if(!(card->pm.flags & CS46XX_PM_IDLE))
{
CS_DBGOUT(CS_PM | CS_ERROR, 2,
printk("cs46xx: cs46xx_suspend() unable to suspend, not IDLEn"));
return 1;
}
card->pm.flags &= ~CS46XX_PM_IDLE;
card->pm.flags |= CS46XX_PM_SUSPENDING;
card->active_ctrl(card,1);
tmp = cs461x_peek(card, BA1_PFIE);
tmp &= ~0x0000f03f;
tmp |= 0x00000010;
cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */
tmp = cs461x_peek(card, BA1_CIE);
tmp &= ~0x0000003f;
tmp |= 0x00000011;
cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */
/*
* Stop playback DMA.
*/
tmp = cs461x_peek(card, BA1_PCTL);
cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
/*
* Stop capture DMA.
*/
tmp = cs461x_peek(card, BA1_CCTL);
cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
if(card->states[1])
{
card->pm.dmabuf_swptr_play = card->states[1]->dmabuf.swptr;
card->pm.dmabuf_count_play = card->states[1]->dmabuf.count;
}
if(card->states[0])
{
card->pm.dmabuf_swptr_capture = card->states[0]->dmabuf.swptr;
card->pm.dmabuf_count_capture = card->states[0]->dmabuf.count;
}
cs46xx_ac97_suspend(card);
/*
* Reset the processor.
*/
cs461x_reset(card);
cs461x_proc_stop(card);
/*
* Power down the DAC and ADC. For now leave the other areas on.
*/
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, 0x0300);
/*
* Power down the PLL.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, 0);
/*
* Turn off the Processor by turning off the software clock enable flag in
* the clock control register.
*/
tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE;
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
card->active_ctrl(card,-1);
card->pm.flags &= ~CS46XX_PM_SUSPENDING;
card->pm.flags |= CS46XX_PM_SUSPENDED;
printpm(card);
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk("cs46xx: cs46xx_suspend()- flags=0x%xn",
(unsigned)card->pm.flags));
return 0;
}
static int cs46xx_resume(struct cs_card *card)
{
int i;
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk( "cs46xx: cs46xx_resume()+ flags=0x%xn",
(unsigned)card->pm.flags));
if(!(card->pm.flags & CS46XX_PM_SUSPENDED))
{
CS_DBGOUT(CS_PM | CS_ERROR, 2,
printk("cs46xx: cs46xx_resume() unable to resume, not SUSPENDEDn"));
return 1;
}
card->pm.flags |= CS46XX_PM_RESUMING;
card->pm.flags &= ~CS46XX_PM_SUSPENDED;
printpm(card);
card->active_ctrl(card, 1);
for(i=0;i<5;i++)
{
if (cs_hardware_init(card) != 0)
{
CS_DBGOUT(CS_PM | CS_ERROR, 4, printk(
"cs46xx: cs46xx_resume()- ERROR in cs_hardware_init()n"));
mdelay(10 * cs_laptop_wait);
cs461x_reset(card);
continue;
}
break;
}
if(i>=4)
{
CS_DBGOUT(CS_PM | CS_ERROR, 1, printk(
"cs46xx: cs46xx_resume()- cs_hardware_init() failed, retried %d times.n",i));
return 0;
}
if(cs46xx_restart_part(card))
{
CS_DBGOUT(CS_PM | CS_ERROR, 4, printk(
"cs46xx: cs46xx_resume(): cs46xx_restart_part() returned errorn"));
}
card->active_ctrl(card, -1);
CS_DBGOUT(CS_PM | CS_FUNCTION, 4, printk("cs46xx: cs46xx_resume()- flags=0x%xn",
(unsigned)card->pm.flags));
return 0;
}
static /*const*/ struct file_operations cs461x_fops = {
CS_OWNER CS_THIS_MODULE
llseek: no_llseek,
read: cs_read,
write: cs_write,
poll: cs_poll,
ioctl: cs_ioctl,
mmap: cs_mmap,
open: cs_open,
release: cs_release,
};
/* Write AC97 codec registers */
static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg)
{
struct cs_card *card = dev->private_data;
int count,loopcnt;
unsigned int tmp;
/*
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
* 3. Write ACCTL = Control Register = 460h for initiating the write
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
* 5. if DCV not cleared, break and return error
* 6. Read ACSTS = Status Register = 464h, check VSTS bit
*/
cs461x_peekBA0(card, BA0_ACSDA);
/*
* Setup the AC97 control registers on the CS461x to send the
* appropriate command to the AC97 to perform the read.
* ACCAD = Command Address Register = 46Ch
* ACCDA = Command Data Register = 470h
* ACCTL = Control Register = 460h
* set DCV - will clear when process completed
* set CRW - Read command
* set VFRM - valid frame enabled
* set ESYN - ASYNC generation enabled
* set RSTN - ARST# inactive, AC97 codec not reset
*/
cs461x_pokeBA0(card, BA0_ACCAD, reg);
cs461x_pokeBA0(card, BA0_ACCDA, 0);
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
ACCTL_VFRM | ACCTL_ESYN |
ACCTL_RSTN);
/*
* Wait for the read to occur.
*/
if(!(card->pm.flags & CS46XX_PM_IDLE))
loopcnt = 2000;
else
loopcnt = 500 * cs_laptop_wait;
loopcnt *= cs_laptop_wait;
for (count = 0; count < loopcnt; count++) {
/*
* First, we want to wait for a short time.
*/
udelay(10 * cs_laptop_wait);
/*
* Now, check to see if the read has completed.
* ACCTL = 460h, DCV should be reset by now and 460h = 17h
*/
if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV))
break;
}
/*
* Make sure the read completed.
*/
if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: AC'97 read problem (ACCTL_DCV), reg = 0x%x returning 0xffffn", reg));
return 0xffff;
}
/*
* Wait for the valid status bit to go active.
*/
if(!(card->pm.flags & CS46XX_PM_IDLE))
loopcnt = 2000;
else
loopcnt = 1000;
loopcnt *= cs_laptop_wait;
for (count = 0; count < loopcnt; count++) {
/*
* Read the AC97 status register.
* ACSTS = Status Register = 464h
* VSTS - Valid Status
*/
if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_VSTS)
break;
udelay(10 * cs_laptop_wait);
}
/*
* Make sure we got valid status.
*/
if (!( (tmp=cs461x_peekBA0(card, BA0_ACSTS)) & ACSTS_VSTS)) {
CS_DBGOUT(CS_ERROR, 2, printk(KERN_WARNING
"cs46xx: AC'97 read problem (ACSTS_VSTS), reg = 0x%x val=0x%x 0xffff n",
reg, tmp));
return 0xffff;
}
/*
* Read the data returned from the AC97 register.
* ACSDA = Status Data Register = 474h
*/
CS_DBGOUT(CS_FUNCTION, 9, printk(KERN_INFO
"cs46xx: cs_ac97_get() reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%xn",
reg, cs461x_peekBA0(card, BA0_ACSDA),
cs461x_peekBA0(card, BA0_ACCAD)));
return(cs461x_peekBA0(card, BA0_ACSDA));
}
static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 val)
{
struct cs_card *card = dev->private_data;
int count;
int val2 = 0;
if(reg == AC97_CD_VOL)
{
val2 = cs_ac97_get(dev, AC97_CD_VOL);
}
/*
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
* 3. Write ACCTL = Control Register = 460h for initiating the write
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
* 5. if DCV not cleared, break and return error
*/
/*
* Setup the AC97 control registers on the CS461x to send the
* appropriate command to the AC97 to perform the read.
* ACCAD = Command Address Register = 46Ch
* ACCDA = Command Data Register = 470h
* ACCTL = Control Register = 460h
* set DCV - will clear when process completed
* reset CRW - Write command
* set VFRM - valid frame enabled
* set ESYN - ASYNC generation enabled
* set RSTN - ARST# inactive, AC97 codec not reset
*/
cs461x_pokeBA0(card, BA0_ACCAD, reg);
cs461x_pokeBA0(card, BA0_ACCDA, val);
cs461x_peekBA0(card, BA0_ACCTL);
cs461x_pokeBA0(card, BA0_ACCTL, 0 | ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
ACCTL_ESYN | ACCTL_RSTN);
for (count = 0; count < 1000; count++) {
/*
* First, we want to wait for a short time.
*/
udelay(10 * cs_laptop_wait);
/*
* Now, check to see if the write has completed.
* ACCTL = 460h, DCV should be reset by now and 460h = 07h
*/
if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV))
break;
}
/*
* Make sure the write completed.
*/
if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV)
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: AC'97 write problem, reg = 0x%x, val = 0x%xn", reg, val));
}
/*
* Adjust power if the mixer is selected/deselected according
* to the CD.
*
* IF the CD is a valid input source (mixer or direct) AND
* the CD is not muted THEN power is needed
*
* We do two things. When record select changes the input to
* add/remove the CD we adjust the power count if the CD is
* unmuted.
*
* When the CD mute changes we adjust the power level if the
* CD was a valid input.
*
* We also check for CD volume != 0, as the CD mute isn't
* normally tweaked from userspace.
*/
/* CD mute change ? */
if(reg==AC97_CD_VOL)
{
/* Mute bit change ? */
if((val2^val)&0x8000 || ((val2 == 0x1f1f || val == 0x1f1f) && val2 != val))
{
/* This is a hack but its cleaner than the alternatives.
Right now card->ac97_codec[0] might be NULL as we are
still doing codec setup. This does an early assignment
to avoid the problem if it occurs */
if(card->ac97_codec[0]==NULL)
card->ac97_codec[0]=dev;
/* Mute on */
if(val&0x8000 || val == 0x1f1f)
card->amplifier_ctrl(card, -1);
else /* Mute off power on */
{
if(card->amp_init)
card->amp_init(card);
card->amplifier_ctrl(card, 1);
}
}
}
}
/* OSS /dev/mixer file operation methods */
static int cs_open_mixdev(struct inode *inode, struct file *file)
{
int i=0;
int minor = MINOR(inode->i_rdev);
struct cs_card *card=NULL;
struct list_head *entry;
unsigned int tmp;
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs46xx: cs_open_mixdev()+n"));
list_for_each(entry, &cs46xx_devs)
{
card = list_entry(entry, struct cs_card, list);
for (i = 0; i < NR_AC97; i++)
if (card->ac97_codec[i] != NULL &&
card->ac97_codec[i]->dev_mixer == minor)
goto match;
}
if (!card)
{
CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEVn"));
return -ENODEV;
}
match:
if(!card->ac97_codec[i])
return -ENODEV;
file->private_data = card->ac97_codec[i];
card->active_ctrl(card,1);
if(!CS_IN_USE(&card->mixer_use_cnt))
{
if( (tmp = cs46xx_powerup(card, CS_POWER_MIXVON )) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs_open_mixdev() powerup failure (0x%x)n",tmp) );
return -EIO;
}
}
card->amplifier_ctrl(card, 1);
CS_INC_USE_COUNT(&card->mixer_use_cnt);
MOD_INC_USE_COUNT; /* for 2.2 */
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs46xx: cs_open_mixdev()- 0n"));
return 0;
}
static int cs_release_mixdev(struct inode *inode, struct file *file)
{
int minor = MINOR(inode->i_rdev);
struct cs_card *card=NULL;
struct list_head *entry;
int i;
unsigned int tmp;
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
printk(KERN_INFO "cs46xx: cs_release_mixdev()+n"));
list_for_each(entry, &cs46xx_devs)
{
card = list_entry(entry, struct cs_card, list);
for (i = 0; i < NR_AC97; i++)
if (card->ac97_codec[i] != NULL &&
card->ac97_codec[i]->dev_mixer == minor)
goto match;
}
if (!card)
{
CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEVn"));
return -ENODEV;
}
match:
MOD_DEC_USE_COUNT; /* for 2.2 */
if(!CS_DEC_AND_TEST(&card->mixer_use_cnt))
{
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
printk(KERN_INFO "cs46xx: cs_release_mixdev()- no powerdown, usecnt>0n"));
card->active_ctrl(card, -1);
card->amplifier_ctrl(card, -1);
return 0;
}
/*
* ok, no outstanding mixer opens, so powerdown.
*/
if( (tmp = cs461x_powerdown(card, CS_POWER_MIXVON, CS_FALSE )) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs_release_mixdev() powerdown MIXVON failure (0x%x)n",tmp) );
card->active_ctrl(card, -1);
card->amplifier_ctrl(card, -1);
return -EIO;
}
card->active_ctrl(card, -1);
card->amplifier_ctrl(card, -1);
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
printk(KERN_INFO "cs46xx: cs_release_mixdev()- 0n"));
return 0;
}
void __exit cs46xx_cleanup_module(void);
static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
struct ac97_codec *codec = (struct ac97_codec *)file->private_data;
struct cs_card *card=NULL;
struct list_head *entry;
#if CSDEBUG_INTERFACE
int val;
if( (cmd == SOUND_MIXER_CS_GETDBGMASK) ||
(cmd == SOUND_MIXER_CS_SETDBGMASK) ||
(cmd == SOUND_MIXER_CS_GETDBGLEVEL) ||
(cmd == SOUND_MIXER_CS_SETDBGLEVEL) ||
(cmd == SOUND_MIXER_CS_APM))
{
switch(cmd)
{
case SOUND_MIXER_CS_GETDBGMASK:
return put_user(cs_debugmask, (unsigned long *)arg);
case SOUND_MIXER_CS_GETDBGLEVEL:
return put_user(cs_debuglevel, (unsigned long *)arg);
case SOUND_MIXER_CS_SETDBGMASK:
if (get_user(val, (unsigned long *)arg))
return -EFAULT;
cs_debugmask = val;
return 0;
case SOUND_MIXER_CS_SETDBGLEVEL:
if (get_user(val, (unsigned long *)arg))
return -EFAULT;
cs_debuglevel = val;
return 0;
case SOUND_MIXER_CS_APM:
if (get_user(val, (unsigned long *) arg))
return -EFAULT;
if(val == CS_IOCTL_CMD_SUSPEND)
{
list_for_each(entry, &cs46xx_devs)
{
card = list_entry(entry, struct cs_card, list);
cs46xx_suspend(card, 0);
}
}
else if(val == CS_IOCTL_CMD_RESUME)
{
list_for_each(entry, &cs46xx_devs)
{
card = list_entry(entry, struct cs_card, list);
cs46xx_resume(card);
}
}
else
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: mixer_ioctl(): invalid APM cmd (%d)n",
val));
}
return 0;
default:
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: mixer_ioctl(): ERROR unknown debug cmdn") );
return 0;
}
}
#endif
return codec->mixer_ioctl(codec, cmd, arg);
}
static /*const*/ struct file_operations cs_mixer_fops = {
CS_OWNER CS_THIS_MODULE
llseek: no_llseek,
ioctl: cs_ioctl_mixdev,
open: cs_open_mixdev,
release: cs_release_mixdev,
};
/* AC97 codec initialisation. */
static int __init cs_ac97_init(struct cs_card *card)
{
int num_ac97 = 0;
int ready_2nd = 0;
struct ac97_codec *codec;
u16 eid;
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init()+n") );
for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
if ((codec = kmalloc(sizeof(struct ac97_codec), GFP_KERNEL)) == NULL)
return -ENOMEM;
memset(codec, 0, sizeof(struct ac97_codec));
/* initialize some basic codec information, other fields will be filled
in ac97_probe_codec */
codec->private_data = card;
codec->id = num_ac97;
codec->codec_read = cs_ac97_get;
codec->codec_write = cs_ac97_set;
if (ac97_probe_codec(codec) == 0)
{
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init()- codec number %d not foundn",
num_ac97) );
card->ac97_codec[num_ac97] = 0;
break;
}
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init() found codec %dn",num_ac97) );
eid = cs_ac97_get(codec, AC97_EXTENDED_ID);
if(eid==0xFFFFFF)
{
printk(KERN_WARNING "cs46xx: codec %d not presentn",num_ac97);
kfree(codec);
break;
}
card->ac97_features = eid;
if ((codec->dev_mixer = register_sound_mixer(&cs_mixer_fops, -1)) < 0) {
printk(KERN_ERR "cs46xx: couldn't register mixer!n");
kfree(codec);
break;
}
card->ac97_codec[num_ac97] = codec;
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init() ac97_codec[%d] set to 0x%xn",
(unsigned int)num_ac97,
(unsigned int)codec));
/* if there is no secondary codec at all, don't probe any more */
if (!ready_2nd)
{
num_ac97 += 1;
break;
}
}
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init()- %dn", (unsigned int)num_ac97));
return num_ac97;
}
/*
* load the static image into the DSP
*/
#include "cs461x_image.h"
static void cs461x_download_image(struct cs_card *card)
{
unsigned i, j, temp1, temp2, offset, count;
unsigned char *pBA1 = ioremap(card->ba1_addr, 0x40000);
for( i=0; i < CLEAR__COUNT; i++)
{
offset = ClrStat[i].BA1__DestByteOffset;
count = ClrStat[i].BA1__SourceSize;
for( temp1 = offset; temp1<(offset+count); temp1+=4 );
writel(0, pBA1+temp1);
}
for(i=0; i<FILL__COUNT; i++)
{
temp2 = FillStat[i].Offset;
for(j=0; j<(FillStat[i].Size)/4; j++)
{
temp1 = (FillStat[i]).pFill[j];
writel(temp1, pBA1+temp2+j*4);
}
}
iounmap(pBA1);
}
/*
* Chip reset
*/
static void cs461x_reset(struct cs_card *card)
{
int idx;
/*
* Write the reset bit of the SP control register.
*/
cs461x_poke(card, BA1_SPCR, SPCR_RSTSP);
/*
* Write the control register.
*/
cs461x_poke(card, BA1_SPCR, SPCR_DRQEN);
/*
* Clear the trap registers.
*/
for (idx = 0; idx < 8; idx++) {
cs461x_poke(card, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
cs461x_poke(card, BA1_TWPR, 0xFFFF);
}
cs461x_poke(card, BA1_DREG, 0);
/*
* Set the frame timer to reflect the number of cycles per frame.
*/
cs461x_poke(card, BA1_FRMT, 0xadf);
}
static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type)
{
int idx, loop, startfifo=0, endfifo=0, powerdown1 = 0;
unsigned int tmp;
/*
* See if the devices are powered down. If so, we must power them up first
* or they will not respond.
*/
if (!((tmp = cs461x_peekBA0(card, BA0_CLKCR1)) & CLKCR1_SWCE)) {
cs461x_pokeBA0(card, BA0_CLKCR1, tmp | CLKCR1_SWCE);
powerdown1 = 1;
}
/*
* We want to clear out the serial port FIFOs so we don't end up playing
* whatever random garbage happens to be in them. We fill the sample FIFOS
* with zero (silence).
*/
cs461x_pokeBA0(card, BA0_SERBWP, 0);
/*
* Check for which FIFO locations to clear, if we are currently
* playing or capturing then we don't want to put in 128 bytes of
* "noise".
*/
if(type & CS_TYPE_DAC)
{
startfifo = 128;
endfifo = 256;
}
if(type & CS_TYPE_ADC)
{
startfifo = 0;
if(!endfifo)
endfifo = 128;
}
/*
* Fill sample FIFO locations (256 locations total).
*/
for (idx = startfifo; idx < endfifo; idx++) {
/*
* Make sure the previous FIFO write operation has completed.
*/
for (loop = 0; loop < 5; loop++) {
udelay(50);
if (!(cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY))
break;
}
if (cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY) {
if (powerdown1)
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
}
/*
* Write the serial port FIFO index.
*/
cs461x_pokeBA0(card, BA0_SERBAD, idx);
/*
* Tell the serial port to load the new value into the FIFO location.
*/
cs461x_pokeBA0(card, BA0_SERBCM, SERBCM_WRC);
}
/*
* Now, if we powered up the devices, then power them back down again.
* This is kinda ugly, but should never happen.
*/
if (powerdown1)
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
}
static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag)
{
int count;
unsigned int tmp=0,muted=0;
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
"cs46xx: cs461x_powerdown()+ type=0x%xn",type));
if(!cs_powerdown && !suspendflag)
{
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs461x_powerdown() DISABLED exitingn"));
return 0;
}
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs461x_powerdown() powerdown reg=0x%xn",tmp));
/*
* if powering down only the VREF, and not powering down the DAC/ADC,
* then do not power down the VREF, UNLESS both the DAC and ADC are not
* currently powered down. If powering down DAC and ADC, then
* it is possible to power down the VREF (ON).
*/
if ( ((type & CS_POWER_MIXVON) &&
(!(type & CS_POWER_ADC) || (!(type & CS_POWER_DAC))) )
&&
((tmp & CS_AC97_POWER_CONTROL_ADC_ON) ||
(tmp & CS_AC97_POWER_CONTROL_DAC_ON) ) )
{
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs461x_powerdown()- 0 unable to powerdown. tmp=0x%xn",tmp));
return 0;
}
/*
* for now, always keep power to the mixer block.
* not sure why it's a problem but it seems to be if we power off.
*/
type &= ~CS_POWER_MIXVON;
type &= ~CS_POWER_MIXVOFF;
/*
* Power down indicated areas.
*/
if(type & CS_POWER_MIXVOFF)
{
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVOFFn"));
/*
* Power down the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON)
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp |= CS_AC97_POWER_CONTROL_MIXVOFF;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON)
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown MIXVOFF failedn"));
return 1;
}
}
}
if(type & CS_POWER_MIXVON)
{
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVONn"));
/*
* Power down the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_MIXVON_ON)
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp |= CS_AC97_POWER_CONTROL_MIXVON;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON)
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown MIXVON failedn"));
return 1;
}
}
}
if(type & CS_POWER_ADC)
{
/*
* Power down the ADC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs461x_powerdown()+ ADCn"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_ADC_ON)
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp |= CS_AC97_POWER_CONTROL_ADC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON)
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown ADC failedn"));
return 1;
}
}
}
if(type & CS_POWER_DAC)
{
/*
* Power down the DAC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs461x_powerdown()+ DACn"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_DAC_ON)
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp |= CS_AC97_POWER_CONTROL_DAC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON)
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown DAC failedn"));
return 1;
}
}
}
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if(muted)
cs_mute(card, CS_FALSE);
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
"cs46xx: cs461x_powerdown()- 0 tmp=0x%xn",tmp));
return 0;
}
static int cs46xx_powerup(struct cs_card *card, unsigned int type)
{
int count;
unsigned int tmp=0,muted=0;
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs46xx_powerup()+ type=0x%xn",type));
/*
* check for VREF and powerup if need to.
*/
if(type & CS_POWER_MIXVON)
type |= CS_POWER_MIXVOFF;
if(type & (CS_POWER_DAC | CS_POWER_ADC))
type |= CS_POWER_MIXVON | CS_POWER_MIXVOFF;
/*
* Power up indicated areas.
*/
if(type & CS_POWER_MIXVOFF)
{
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVOFFn"));
/*
* Power up the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON))
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp &= ~CS_AC97_POWER_CONTROL_MIXVOFF;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON))
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup MIXVOFF failedn"));
return 1;
}
}
}
if(type & CS_POWER_MIXVON)
{
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVONn"));
/*
* Power up the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_MIXVON_ON))
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp &= ~CS_AC97_POWER_CONTROL_MIXVON;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON))
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup MIXVON failedn"));
return 1;
}
}
}
if(type & CS_POWER_ADC)
{
/*
* Power up the ADC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs46xx_powerup()+ ADCn"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_ADC_ON))
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp &= ~CS_AC97_POWER_CONTROL_ADC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON))
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup ADC failedn"));
return 1;
}
}
}
if(type & CS_POWER_DAC)
{
/*
* Power up the DAC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs46xx_powerup()+ DACn"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_DAC_ON))
{
if(!muted)
{
cs_mute(card, CS_TRUE);
muted=1;
}
tmp &= ~CS_AC97_POWER_CONTROL_DAC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON))
{
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup DAC failedn"));
return 1;
}
}
}
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if(muted)
cs_mute(card, CS_FALSE);
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
"cs46xx: cs46xx_powerup()- 0 tmp=0x%xn",tmp));
return 0;
}
static void cs461x_proc_start(struct cs_card *card)
{
int cnt;
/*
* Set the frame timer to reflect the number of cycles per frame.
*/
cs461x_poke(card, BA1_FRMT, 0xadf);
/*
* Turn on the run, run at frame, and DMA enable bits in the local copy of
* the SP control register.
*/
cs461x_poke(card, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
/*
* Wait until the run at frame bit resets itself in the SP control
* register.
*/
for (cnt = 0; cnt < 25; cnt++) {
udelay(50);
if (!(cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR))
break;
}
if (cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR)
printk(KERN_WARNING "cs46xx: SPCR_RUNFR never resetn");
}
static void cs461x_proc_stop(struct cs_card *card)
{
/*
* Turn off the run, run at frame, and DMA enable bits in the local copy of
* the SP control register.
*/
cs461x_poke(card, BA1_SPCR, 0);
}
static int cs_hardware_init(struct cs_card *card)
{
unsigned long end_time;
unsigned int tmp,count;
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_hardware_init()+n") );
/*
* First, blast the clock control register to zero so that the PLL starts
* out in a known state, and blast the master serial port control register
* to zero so that the serial ports also start out in a known state.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, 0);
cs461x_pokeBA0(card, BA0_SERMC1, 0);
/*
* If we are in AC97 mode, then we must set the part to a host controlled
* AC-link. Otherwise, we won't be able to bring up the link.
*/
cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_1_03); /* 1.03 card */
/* cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_2_0); */ /* 2.00 card */
/*
* Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
* spec) and then drive it high. This is done for non AC97 modes since
* there might be logic external to the CS461x that uses the ARST# line
* for a reset.
*/
cs461x_pokeBA0(card, BA0_ACCTL, 1);
udelay(50);
cs461x_pokeBA0(card, BA0_ACCTL, 0);
udelay(50);
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_RSTN);
/*
* The first thing we do here is to enable sync generation. As soon
* as we start receiving bit clock, we'll start producing the SYNC
* signal.
*/
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
/*
* Now wait for a short while to allow the AC97 part to start
* generating bit clock (so we don't try to start the PLL without an
* input clock).
*/
mdelay(5 * cs_laptop_wait); /* 1 should be enough ?? (and pigs might fly) */
/*
* Set the serial port timing configuration, so that
* the clock control circuit gets its clock from the correct place.
*/
cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97);
/*
* The part seems to not be ready for a while after a resume.
* so, if we are resuming, then wait for 700 mils. Note that 600 mils
* is not enough for some platforms! tested on an IBM Thinkpads and
* reference cards.
*/
if(!(card->pm.flags & CS46XX_PM_IDLE))
mdelay(initdelay);
/*
* Write the selected clock control setup to the hardware. Do not turn on
* SWCE yet (if requested), so that the devices clocked by the output of
* PLL are not clocked until the PLL is stable.
*/
cs461x_pokeBA0(card, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
cs461x_pokeBA0(card, BA0_PLLM, 0x3a);
cs461x_pokeBA0(card, BA0_CLKCR2, CLKCR2_PDIVS_8);
/*
* Power up the PLL.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, CLKCR1_PLLP);
/*
* Wait until the PLL has stabilized.
*/
mdelay(5 * cs_laptop_wait); /* Again 1 should be enough ?? */
/*
* Turn on clocking of the core so that we can setup the serial ports.
*/
tmp = cs461x_peekBA0(card, BA0_CLKCR1) | CLKCR1_SWCE;
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
/*
* Fill the serial port FIFOs with silence.
*/
cs461x_clear_serial_FIFOs(card,CS_TYPE_DAC | CS_TYPE_ADC);
/*
* Set the serial port FIFO pointer to the first sample in the FIFO.
*/
/* cs461x_pokeBA0(card, BA0_SERBSP, 0); */
/*
* Write the serial port configuration to the part. The master
* enable bit is not set until all other values have been written.
*/
cs461x_pokeBA0(card, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
cs461x_pokeBA0(card, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
mdelay(5 * cs_laptop_wait); /* Shouldnt be needed ?? */
/*
* If we are resuming under 2.2.x then we can not schedule a timeout.
* so, just spin the CPU.
*/
if(card->pm.flags & CS46XX_PM_IDLE)
{
/*
* Wait for the card ready signal from the AC97 card.
*/
end_time = jiffies + 3 * (HZ >> 2);
do {
/*
* Read the AC97 status register to see if we've seen a CODEC READY
* signal from the AC97 card.
*/
if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)
break;
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(1);
} while (time_before(jiffies, end_time));
}
else
{
for (count = 0; count < 100; count++) {
// First, we want to wait for a short time.
udelay(25 * cs_laptop_wait);
if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)
break;
}
}
/*
* Make sure CODEC is READY.
*/
if (!(cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
"cs46xx: create - never read card ready from AC'97n"));
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
"cs46xx: probably not a bug, try using the CS4232 driver,n"));
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
"cs46xx: or turn off any automatic Power Management support in the BIOS.n"));
return -EIO;
}
/*
* Assert the vaid frame signal so that we can start sending commands
* to the AC97 card.
*/
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
if(card->pm.flags & CS46XX_PM_IDLE)
{
/*
* Wait until we've sampled input slots 3 and 4 as valid, meaning that
* the card is pumping ADC data across the AC-link.
*/
end_time = jiffies + 3 * (HZ >> 2);
do {
/*
* Read the input slot valid register and see if input slots 3 and
* 4 are valid yet.
*/
if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
break;
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(1);
} while (time_before(jiffies, end_time));
}
else
{
for (count = 0; count < 100; count++) {
// First, we want to wait for a short time.
udelay(25 * cs_laptop_wait);
if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
break;
}
}
/*
* Make sure input slots 3 and 4 are valid. If not, then return
* an error.
*/
if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) != (ACISV_ISV3 | ACISV_ISV4)) {
printk(KERN_WARNING "cs46xx: create - never read ISV3 & ISV4 from AC'97n");
return -EIO;
}
/*
* Now, assert valid frame and the slot 3 and 4 valid bits. This will
* commense the transfer of digital audio data to the AC97 card.
*/
cs461x_pokeBA0(card, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
/*
* Turn off the Processor by turning off the software clock enable flag in
* the clock control register.
*/
/* tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE; */
/* cs461x_pokeBA0(card, BA0_CLKCR1, tmp); */
/*
* Reset the processor.
*/
cs461x_reset(card);
/*
* Download the image to the processor.
*/
cs461x_download_image(card);
/*
* Stop playback DMA.
*/
tmp = cs461x_peek(card, BA1_PCTL);
card->pctl = tmp & 0xffff0000;
cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
/*
* Stop capture DMA.
*/
tmp = cs461x_peek(card, BA1_CCTL);
card->cctl = tmp & 0x0000ffff;
cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
/* initialize AC97 codec and register /dev/mixer */
if(card->pm.flags & CS46XX_PM_IDLE)
{
if (cs_ac97_init(card) <= 0)
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs_ac97_init() failuren") );
return -EIO;
}
}
else
{
cs46xx_ac97_resume(card);
}
cs461x_proc_start(card);
/*
* Enable interrupts on the part.
*/
cs461x_pokeBA0(card, BA0_HICR, HICR_IEV | HICR_CHGM);
tmp = cs461x_peek(card, BA1_PFIE);
tmp &= ~0x0000f03f;
cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt enable */
tmp = cs461x_peek(card, BA1_CIE);
tmp &= ~0x0000003f;
tmp |= 0x00000001;
cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt enable */
/*
* If IDLE then Power down the part. We will power components up
* when we need them.
*/
if(card->pm.flags & CS46XX_PM_IDLE)
{
if(!cs_powerdown)
{
if( (tmp = cs46xx_powerup(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON )) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs461x_powerup() failure (0x%x)n",tmp) );
return -EIO;
}
}
else
{
if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON, CS_FALSE )) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs461x_powerdown() failure (0x%x)n",tmp) );
return -EIO;
}
}
}
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_hardware_init()- 0n"));
return 0;
}
/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered
until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
/*
* Card subid table
*/
struct cs_card_type
{
u16 vendor;
u16 id;
char *name;
void (*amp)(struct cs_card *, int);
void (*amp_init)(struct cs_card *);
void (*active)(struct cs_card *, int);
};
static struct cs_card_type cards[]={
{0x1489, 0x7001, "Genius Soundmaker 128 value", amp_none, NULL, NULL},
{0x5053, 0x3357, "Voyetra", amp_voyetra, NULL, NULL},
{0x1071, 0x6003, "Mitac MI6020/21", amp_voyetra, NULL, NULL},
{0x14AF, 0x0050, "Hercules Game Theatre XP", amp_hercules, NULL, NULL},
{0x1681, 0x0050, "Hercules Game Theatre XP", amp_hercules, NULL, NULL},
{0x1681, 0x0051, "Hercules Game Theatre XP", amp_hercules, NULL, NULL},
{0x1681, 0x0052, "Hercules Game Theatre XP", amp_hercules, NULL, NULL},
{0x1681, 0x0053, "Hercules Game Theatre XP", amp_hercules, NULL, NULL},
{0x1681, 0x0054, "Hercules Game Theatre XP", amp_hercules, NULL, NULL},
{0x1681, 0xa010, "Hercules Fortissimo II", amp_none, NULL, NULL},
/* Not sure if the 570 needs the clkrun hack */
{PCI_VENDOR_ID_IBM, 0x0132, "Thinkpad 570", amp_none, NULL, clkrun_hack},
{PCI_VENDOR_ID_IBM, 0x0153, "Thinkpad 600X/A20/T20", amp_none, NULL, clkrun_hack},
{PCI_VENDOR_ID_IBM, 0x1010, "Thinkpad 600E (unsupported)", NULL, NULL, NULL},
{0, 0, "Card without SSID set", NULL, NULL, NULL },
{0, 0, NULL, NULL, NULL}
};
MODULE_AUTHOR("Alan Cox <alan@redhat.com>, Jaroslav Kysela, <pcaudio@crystal.cirrus.com>");
MODULE_DESCRIPTION("Crystal SoundFusion Audio Support");
MODULE_LICENSE("GPL");
static const char cs46xx_banner[] = KERN_INFO "Crystal 4280/46xx + AC97 Audio, version " CS46XX_MAJOR_VERSION "." CS46XX_MINOR_VERSION "." CS46XX_ARCH ", " __TIME__ " " __DATE__ "n";
static const char fndmsg[] = KERN_INFO "cs46xx: Found %d audio device(s).n";
static int __devinit cs46xx_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pciid)
{
struct pm_dev *pmdev;
int i,j;
u16 ss_card, ss_vendor;
struct cs_card *card;
dma_addr_t dma_mask;
struct cs_card_type *cp = &cards[0];
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2,
printk(KERN_INFO "cs46xx: probe()+n"));
dma_mask = 0xffffffff; /* this enables playback and recording */
if (pci_enable_device(pci_dev)) {
CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR
"cs46xx: pci_enable_device() failedn"));
return -1;
}
if (!RSRCISMEMORYREGION(pci_dev, 0) ||
!RSRCISMEMORYREGION(pci_dev, 1)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs46xx: probe()- Memory region not assignedn"));
return -1;
}
if (pci_dev->irq == 0) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs46xx: probe() IRQ not assignedn"));
return -1;
}
if (!pci_dma_supported(pci_dev, 0xffffffff)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs46xx: probe() architecture does not support 32bit PCI busmaster DMAn"));
return -1;
}
pci_read_config_word(pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
pci_read_config_word(pci_dev, PCI_SUBSYSTEM_ID, &ss_card);
if ((card = kmalloc(sizeof(struct cs_card), GFP_KERNEL)) == NULL) {
printk(KERN_ERR "cs46xx: out of memoryn");
return -ENOMEM;
}
memset(card, 0, sizeof(*card));
card->ba0_addr = RSRCADDRESS(pci_dev, 0);
card->ba1_addr = RSRCADDRESS(pci_dev, 1);
card->pci_dev = pci_dev;
card->irq = pci_dev->irq;
card->magic = CS_CARD_MAGIC;
spin_lock_init(&card->lock);
pci_set_master(pci_dev);
printk(cs46xx_banner);
printk(KERN_INFO "cs46xx: Card found at 0x%08lx and 0x%08lx, IRQ %dn",
card->ba0_addr, card->ba1_addr, card->irq);
card->alloc_pcm_channel = cs_alloc_pcm_channel;
card->alloc_rec_pcm_channel = cs_alloc_rec_pcm_channel;
card->free_pcm_channel = cs_free_pcm_channel;
card->amplifier_ctrl = amp_none;
card->active_ctrl = amp_none;
while (cp->name)
{
if(cp->vendor == ss_vendor && cp->id == ss_card)
{
card->amplifier_ctrl = cp->amp;
if(cp->active)
card->active_ctrl = cp->active;
if(cp->amp_init)
card->amp_init = cp->amp_init;
break;
}
cp++;
}
if (cp->name==NULL)
{
printk(KERN_INFO "cs46xx: Unknown card (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %dn",
ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq);
}
else
{
printk(KERN_INFO "cs46xx: %s (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %dn",
cp->name, ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq);
}
if (card->amplifier_ctrl==NULL)
{
card->amplifier_ctrl = amp_none;
card->active_ctrl = clkrun_hack;
}
if (external_amp == 1)
{
printk(KERN_INFO "cs46xx: Crystal EAPD support forced on.n");
card->amplifier_ctrl = amp_voyetra;
}
if (thinkpad == 1)
{
printk(KERN_INFO "cs46xx: Activating CLKRUN hack for Thinkpad.n");
card->active_ctrl = clkrun_hack;
}
/*
* The thinkpads don't work well without runtime updating on their kernel
* delay values (or any laptop with variable CPU speeds really).
* so, just to be safe set the init delay to 2100. Eliminates
* failures on T21 Thinkpads. remove this code when the udelay
* and mdelay kernel code is replaced by a pm timer, or the delays
* work well for battery and/or AC power both.
*/
if(card->active_ctrl == clkrun_hack)
{
initdelay = 2100;
cs_laptop_wait = 5;
}
if((card->active_ctrl == clkrun_hack) && !(powerdown == 1))
{
/*
* for some currently unknown reason, powering down the DAC and ADC component
* blocks on thinkpads causes some funky behavior... distoorrrtion and ac97
* codec access problems. probably the serial clock becomes unsynced.
* added code to sync the chips back up, but only helped about 70% the time.
*/
cs_powerdown = 0;
}
if(powerdown == 0)
cs_powerdown = 0;
card->active_ctrl(card, 1);
/* claim our iospace and irq */
card->ba0 = ioremap_nocache(card->ba0_addr, CS461X_BA0_SIZE);
card->ba1.name.data0 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM0, CS461X_BA1_DATA0_SIZE);
card->ba1.name.data1 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM1, CS461X_BA1_DATA1_SIZE);
card->ba1.name.pmem = ioremap_nocache(card->ba1_addr + BA1_SP_PMEM, CS461X_BA1_PRG_SIZE);
card->ba1.name.reg = ioremap_nocache(card->ba1_addr + BA1_SP_REG, CS461X_BA1_REG_SIZE);
CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO
"cs46xx: card=0x%x card->ba0=0x%.08xn",(unsigned)card,(unsigned)card->ba0) );
CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO
"cs46xx: card->ba1=0x%.08x 0x%.08x 0x%.08x 0x%.08xn",
(unsigned)card->ba1.name.data0,
(unsigned)card->ba1.name.data1,
(unsigned)card->ba1.name.pmem,
(unsigned)card->ba1.name.reg) );
if(card->ba0 == 0 || card->ba1.name.data0 == 0 ||
card->ba1.name.data1 == 0 || card->ba1.name.pmem == 0 ||
card->ba1.name.reg == 0)
goto fail2;
if (request_irq(card->irq, &cs_interrupt, SA_SHIRQ, "cs46xx", card)) {
printk(KERN_ERR "cs46xx: unable to allocate irq %dn", card->irq);
goto fail2;
}
/* register /dev/dsp */
if ((card->dev_audio = register_sound_dsp(&cs461x_fops, -1)) < 0) {
printk(KERN_ERR "cs46xx: unable to register dspn");
goto fail;
}
/* register /dev/midi */
if((card->dev_midi = register_sound_midi(&cs_midi_fops, -1)) < 0)
printk(KERN_ERR "cs46xx: unable to register midin");
card->pm.flags |= CS46XX_PM_IDLE;
for(i=0;i<5;i++)
{
if (cs_hardware_init(card) != 0)
{
CS_DBGOUT(CS_ERROR, 4, printk(
"cs46xx: ERROR in cs_hardware_init()... retryingn"));
for (j = 0; j < NR_AC97; j++)
if (card->ac97_codec[j] != NULL) {
unregister_sound_mixer(card->ac97_codec[j]->dev_mixer);
kfree (card->ac97_codec[j]);
}
mdelay(10 * cs_laptop_wait);
continue;
}
break;
}
if(i>=4)
{
CS_DBGOUT(CS_PM | CS_ERROR, 1, printk(
"cs46xx: cs46xx_probe()- cs_hardware_init() failed, retried %d times.n",i));
unregister_sound_dsp(card->dev_audio);
if(card->dev_midi)
unregister_sound_midi(card->dev_midi);
goto fail;
}
init_waitqueue_head(&card->midi.open_wait);
init_MUTEX(&card->midi.open_sem);
init_waitqueue_head(&card->midi.iwait);
init_waitqueue_head(&card->midi.owait);
cs461x_pokeBA0(card, BA0_MIDCR, MIDCR_MRST);
cs461x_pokeBA0(card, BA0_MIDCR, 0);
/*
* Check if we have to init the amplifier, but probably already done
* since the CD logic in the ac97 init code will turn on the ext amp.
*/
if(cp->amp_init)
cp->amp_init(card);
card->active_ctrl(card, -1);
PCI_SET_DRIVER_DATA(pci_dev, card);
PCI_SET_DMA_MASK(pci_dev, dma_mask);
list_add(&card->list, &cs46xx_devs);
pmdev = cs_pm_register(PM_PCI_DEV, PM_PCI_ID(pci_dev), cs46xx_pm_callback);
if (pmdev)
{
CS_DBGOUT(CS_INIT | CS_PM, 4, printk(KERN_INFO
"cs46xx: probe() pm_register() succeeded (0x%x).n",
(unsigned)pmdev));
pmdev->data = card;
}
else
{
CS_DBGOUT(CS_INIT | CS_PM | CS_ERROR, 2, printk(KERN_INFO
"cs46xx: probe() pm_register() failed (0x%x).n",
(unsigned)pmdev));
card->pm.flags |= CS46XX_PM_NOT_REGISTERED;
}
CS_DBGOUT(CS_PM, 9, printk(KERN_INFO "cs46xx: pm.flags=0x%x card=0x%xn",
(unsigned)card->pm.flags,(unsigned)card));
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: probe()- device allocated successfullyn"));
return 0;
fail:
free_irq(card->irq, card);
fail2:
if(card->ba0)
iounmap(card->ba0);
if(card->ba1.name.data0)
iounmap(card->ba1.name.data0);
if(card->ba1.name.data1)
iounmap(card->ba1.name.data1);
if(card->ba1.name.pmem)
iounmap(card->ba1.name.pmem);
if(card->ba1.name.reg)
iounmap(card->ba1.name.reg);
kfree(card);
CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_INFO
"cs46xx: probe()- no device allocatedn"));
return -ENODEV;
} // probe_cs46xx
// ---------------------------------------------------------------------
static void __devinit cs46xx_remove(struct pci_dev *pci_dev)
{
struct cs_card *card = PCI_GET_DRIVER_DATA(pci_dev);
int i;
unsigned int tmp;
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs46xx_remove()+n"));
card->active_ctrl(card,1);
tmp = cs461x_peek(card, BA1_PFIE);
tmp &= ~0x0000f03f;
tmp |= 0x00000010;
cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */
tmp = cs461x_peek(card, BA1_CIE);
tmp &= ~0x0000003f;
tmp |= 0x00000011;
cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */
/*
* Stop playback DMA.
*/
tmp = cs461x_peek(card, BA1_PCTL);
cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
/*
* Stop capture DMA.
*/
tmp = cs461x_peek(card, BA1_CCTL);
cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
/*
* Reset the processor.
*/
cs461x_reset(card);
cs461x_proc_stop(card);
/*
* Power down the DAC and ADC. We will power them up (if) when we need
* them.
*/
if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON, CS_TRUE )) )
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs461x_powerdown() failure (0x%x)n",tmp) );
}
/*
* Power down the PLL.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, 0);
/*
* Turn off the Processor by turning off the software clock enable flag in
* the clock control register.
*/
tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE;
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
card->active_ctrl(card,-1);
/* free hardware resources */
free_irq(card->irq, card);
iounmap(card->ba0);
iounmap(card->ba1.name.data0);
iounmap(card->ba1.name.data1);
iounmap(card->ba1.name.pmem);
iounmap(card->ba1.name.reg);
/* unregister audio devices */
for (i = 0; i < NR_AC97; i++)
if (card->ac97_codec[i] != NULL) {
unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
kfree (card->ac97_codec[i]);
}
unregister_sound_dsp(card->dev_audio);
if(card->dev_midi)
unregister_sound_midi(card->dev_midi);
list_del(&card->list);
kfree(card);
PCI_SET_DRIVER_DATA(pci_dev,NULL);
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs46xx_remove()-: remove successfuln"));
}
enum {
CS46XX_4610 = 0,
CS46XX_4612, /* same as 4630 */
CS46XX_4615, /* same as 4624 */
};
static struct pci_device_id cs46xx_pci_tbl[] __devinitdata = {
{PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_4610, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CS46XX_4610},
{PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_4612, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CS46XX_4612},
{PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_4615, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CS46XX_4615},
{0,}
};
MODULE_DEVICE_TABLE(pci, cs46xx_pci_tbl);
struct pci_driver cs46xx_pci_driver = {
name:"cs46xx",
id_table:cs46xx_pci_tbl,
probe:cs46xx_probe,
remove:cs46xx_remove,
suspend:CS46XX_SUSPEND_TBL,
resume:CS46XX_RESUME_TBL,
};
int __init cs46xx_init_module(void)
{
int rtn = 0;
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs46xx_init_module()+ n"));
if (!pci_present()) { /* No PCI bus in this machine! */
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs46xx_init_module()- no pci bus foundn"));
return -ENODEV;
}
rtn = pci_module_init(&cs46xx_pci_driver);
if(rtn == -ENODEV)
{
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(
"cs46xx: Unable to detect valid cs46xx devicen"));
}
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cs46xx_init_module()- (%d)n",rtn));
return rtn;
}
void __exit cs46xx_cleanup_module(void)
{
pci_unregister_driver(&cs46xx_pci_driver);
cs_pm_unregister_all(cs46xx_pm_callback);
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cleanup_cs46xx() finishedn"));
}
module_init(cs46xx_init_module);
module_exit(cs46xx_cleanup_module);
int cs46xx_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data)
{
struct cs_card *card;
CS_DBGOUT(CS_PM, 2, printk(KERN_INFO
"cs46xx: cs46xx_pm_callback dev=0x%x rqst=0x%x card=%dn",
(unsigned)dev,(unsigned)rqst,(unsigned)data));
card = (struct cs_card *) dev->data;
if (card) {
switch(rqst) {
case PM_SUSPEND:
CS_DBGOUT(CS_PM, 2, printk(KERN_INFO
"cs46xx: PM suspend requestn"));
if(cs46xx_suspend(card, 0))
{
CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
"cs46xx: PM suspend request refusedn"));
return 1;
}
break;
case PM_RESUME:
CS_DBGOUT(CS_PM, 2, printk(KERN_INFO
"cs46xx: PM resume requestn"));
if(cs46xx_resume(card))
{
CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
"cs46xx: PM resume request refusedn"));
return 1;
}
break;
}
}
return 0;
}
#if CS46XX_ACPI_SUPPORT
static int cs46xx_suspend_tbl(struct pci_dev *pcidev, u32 state)
{
struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev);
CS_DBGOUT(CS_PM | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cs46xx_suspend_tbl requestn"));
cs46xx_suspend(s, 0);
return 0;
}
static int cs46xx_resume_tbl(struct pci_dev *pcidev)
{
struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev);
CS_DBGOUT(CS_PM | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cs46xx_resume_tbl requestn"));
cs46xx_resume(s);
return 0;
}
#endif