cs46xx_lib.c

h内核

}

static int snd_cs46xx_playback_close(snd_pcm_substream_t * substream);

static int snd_cs46xx_playback_close_iec958(snd_pcm_substream_t * substream)
{
	int err;
	cs46xx_t *chip = snd_pcm_substream_chip(substream);
  
	snd_printdd("close raw iec958 channel\n");

	err = snd_cs46xx_playback_close(substream);

	down (&chip->spos_mutex);
	cs46xx_iec958_post_close (chip);
	up (&chip->spos_mutex);

	return err;
}
#endif

static int snd_cs46xx_capture_open(snd_pcm_substream_t * substream)
{
	cs46xx_t *chip = snd_pcm_substream_chip(substream);

	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
				PAGE_SIZE, &chip->capt.hw_buf) < 0)
		return -ENOMEM;
	chip->capt.substream = substream;
	substream->runtime->hw = snd_cs46xx_capture;

	if (chip->accept_valid)
		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;

	chip->active_ctrl(chip, 1);

#ifdef CONFIG_SND_CS46XX_NEW_DSP
	snd_pcm_hw_constraint_list(substream->runtime, 0,
				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
				   &hw_constraints_period_sizes);
#endif
	return 0;
}

static int snd_cs46xx_playback_close(snd_pcm_substream_t * substream)
{
	cs46xx_t *chip = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
	cs46xx_pcm_t * cpcm;

	cpcm = runtime->private_data;

	/* when playback_open fails, then cpcm can be NULL */
	if (!cpcm) return -ENXIO;

#ifdef CONFIG_SND_CS46XX_NEW_DSP
	down (&chip->spos_mutex);
	if (cpcm->pcm_channel) {
		cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
		cpcm->pcm_channel = NULL;
	}
	up (&chip->spos_mutex);
#else
	chip->playback_pcm = NULL;
#endif

	cpcm->substream = NULL;
	snd_dma_free_pages(&cpcm->hw_buf);
	chip->active_ctrl(chip, -1);

	return 0;
}

static int snd_cs46xx_capture_close(snd_pcm_substream_t * substream)
{
	cs46xx_t *chip = snd_pcm_substream_chip(substream);

	chip->capt.substream = NULL;
	snd_dma_free_pages(&chip->capt.hw_buf);
	chip->active_ctrl(chip, -1);

	return 0;
}

#ifdef CONFIG_SND_CS46XX_NEW_DSP
static snd_pcm_ops_t snd_cs46xx_playback_rear_ops = {
	.open =			snd_cs46xx_playback_open_rear,
	.close =		snd_cs46xx_playback_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_direct_pointer,
};

static snd_pcm_ops_t snd_cs46xx_playback_indirect_rear_ops = {
	.open =			snd_cs46xx_playback_open_rear,
	.close =		snd_cs46xx_playback_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_indirect_pointer,
	.ack =			snd_cs46xx_playback_transfer,
};

static snd_pcm_ops_t snd_cs46xx_playback_clfe_ops = {
	.open =			snd_cs46xx_playback_open_clfe,
	.close =		snd_cs46xx_playback_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_direct_pointer,
};

static snd_pcm_ops_t snd_cs46xx_playback_indirect_clfe_ops = {
	.open =			snd_cs46xx_playback_open_clfe,
	.close =		snd_cs46xx_playback_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_indirect_pointer,
	.ack =			snd_cs46xx_playback_transfer,
};

static snd_pcm_ops_t snd_cs46xx_playback_iec958_ops = {
	.open =			snd_cs46xx_playback_open_iec958,
	.close =		snd_cs46xx_playback_close_iec958,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_direct_pointer,
};

static snd_pcm_ops_t snd_cs46xx_playback_indirect_iec958_ops = {
	.open =			snd_cs46xx_playback_open_iec958,
	.close =		snd_cs46xx_playback_close_iec958,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_indirect_pointer,
	.ack =			snd_cs46xx_playback_transfer,
};

#endif

static snd_pcm_ops_t snd_cs46xx_playback_ops = {
	.open =			snd_cs46xx_playback_open,
	.close =		snd_cs46xx_playback_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_direct_pointer,
};

static snd_pcm_ops_t snd_cs46xx_playback_indirect_ops = {
	.open =			snd_cs46xx_playback_open,
	.close =		snd_cs46xx_playback_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_playback_hw_params,
	.hw_free =		snd_cs46xx_playback_hw_free,
	.prepare =		snd_cs46xx_playback_prepare,
	.trigger =		snd_cs46xx_playback_trigger,
	.pointer =		snd_cs46xx_playback_indirect_pointer,
	.ack =			snd_cs46xx_playback_transfer,
};

static snd_pcm_ops_t snd_cs46xx_capture_ops = {
	.open =			snd_cs46xx_capture_open,
	.close =		snd_cs46xx_capture_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_capture_hw_params,
	.hw_free =		snd_cs46xx_capture_hw_free,
	.prepare =		snd_cs46xx_capture_prepare,
	.trigger =		snd_cs46xx_capture_trigger,
	.pointer =		snd_cs46xx_capture_direct_pointer,
};

static snd_pcm_ops_t snd_cs46xx_capture_indirect_ops = {
	.open =			snd_cs46xx_capture_open,
	.close =		snd_cs46xx_capture_close,
	.ioctl =		snd_pcm_lib_ioctl,
	.hw_params =		snd_cs46xx_capture_hw_params,
	.hw_free =		snd_cs46xx_capture_hw_free,
	.prepare =		snd_cs46xx_capture_prepare,
	.trigger =		snd_cs46xx_capture_trigger,
	.pointer =		snd_cs46xx_capture_indirect_pointer,
	.ack =			snd_cs46xx_capture_transfer,
};

static void snd_cs46xx_pcm_free(snd_pcm_t *pcm)
{
	cs46xx_t *chip = pcm->private_data;
	chip->pcm = NULL;
	snd_pcm_lib_preallocate_free_for_all(pcm);
}

#ifdef CONFIG_SND_CS46XX_NEW_DSP
static void snd_cs46xx_pcm_rear_free(snd_pcm_t *pcm)
{
	cs46xx_t *chip = pcm->private_data;
	chip->pcm_rear = NULL;
	snd_pcm_lib_preallocate_free_for_all(pcm);
}

static void snd_cs46xx_pcm_center_lfe_free(snd_pcm_t *pcm)
{
	cs46xx_t *chip = pcm->private_data;
	chip->pcm_center_lfe = NULL;
	snd_pcm_lib_preallocate_free_for_all(pcm);
}

static void snd_cs46xx_pcm_iec958_free(snd_pcm_t *pcm)
{
	cs46xx_t *chip = pcm->private_data;
	chip->pcm_iec958 = NULL;
	snd_pcm_lib_preallocate_free_for_all(pcm);
}

#define MAX_PLAYBACK_CHANNELS	(DSP_MAX_PCM_CHANNELS - 1)
#else
#define MAX_PLAYBACK_CHANNELS	1
#endif

int __devinit snd_cs46xx_pcm(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
{
	snd_pcm_t *pcm;
	int err;

	if (rpcm)
		*rpcm = NULL;
	if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
		return err;

	pcm->private_data = chip;
	pcm->private_free = snd_cs46xx_pcm_free;

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);

	/* global setup */
	pcm->info_flags = 0;
	strcpy(pcm->name, "CS46xx");
	chip->pcm = pcm;

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);

	if (rpcm)
		*rpcm = pcm;

	return 0;
}


#ifdef CONFIG_SND_CS46XX_NEW_DSP
int __devinit snd_cs46xx_pcm_rear(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
{
	snd_pcm_t *pcm;
	int err;

	if (rpcm)
		*rpcm = NULL;

	if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
		return err;

	pcm->private_data = chip;
	pcm->private_free = snd_cs46xx_pcm_rear_free;

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);

	/* global setup */
	pcm->info_flags = 0;
	strcpy(pcm->name, "CS46xx - Rear");
	chip->pcm_rear = pcm;

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);

	if (rpcm)
		*rpcm = pcm;

	return 0;
}

int __devinit snd_cs46xx_pcm_center_lfe(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
{
	snd_pcm_t *pcm;
	int err;

	if (rpcm)
		*rpcm = NULL;

	if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
		return err;

	pcm->private_data = chip;
	pcm->private_free = snd_cs46xx_pcm_center_lfe_free;

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);

	/* global setup */
	pcm->info_flags = 0;
	strcpy(pcm->name, "CS46xx - Center LFE");
	chip->pcm_center_lfe = pcm;

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);

	if (rpcm)
		*rpcm = pcm;

	return 0;
}

int __devinit snd_cs46xx_pcm_iec958(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
{
	snd_pcm_t *pcm;
	int err;

	if (rpcm)
		*rpcm = NULL;

	if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
		return err;

	pcm->private_data = chip;
	pcm->private_free = snd_cs46xx_pcm_iec958_free;

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);

	/* global setup */
	pcm->info_flags = 0;
	strcpy(pcm->name, "CS46xx - IEC958");
	chip->pcm_rear = pcm;

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);

	if (rpcm)
		*rpcm = pcm;

	return 0;
}
#endif

/*
 *  Mixer routines
 */
static void snd_cs46xx_mixer_free_ac97_bus(ac97_bus_t *bus)
{
	cs46xx_t *chip = bus->private_data;

	chip->ac97_bus = NULL;
}

static void snd_cs46xx_mixer_free_ac97(ac97_t *ac97)
{
	cs46xx_t *chip = ac97->private_data;

	snd_assert ((ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) ||
		    (ac97 == chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]),
		    return);

	if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
		chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
		chip->eapd_switch = NULL;
	}
	else
		chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
}

static int snd_cs46xx_vol_info(snd_kcontrol_t *kcontrol, 
			       snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 0x7fff;
	return 0;
}

static int snd_cs46xx_vol_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int reg = kcontrol->private_value;
	unsigned int val = snd_cs46xx_peek(chip, reg);
	ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
	ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
	return 0;
}

static int snd_cs46xx_vol_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int reg = kcontrol->private_value;
	unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 | 
			    (0xffff - ucontrol->value.integer.value[1]));
	unsigned int old = snd_cs46xx_peek(chip, reg);
	int change = (old != val);

	if (change) {
		snd_cs46xx_poke(chip, reg, val);
	}

	return change;
}

#ifdef CONFIG_SND_CS46XX_NEW_DSP

static int snd_cs46xx_vol_dac_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;

	return 0;
}

static int snd_cs46xx_vol_dac_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int change = 0;

	if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
	    chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
		cs46xx_dsp_set_dac_volume(chip,
					  ucontrol->value.integer.value[0],
					  ucontrol->value.integer.value[1]);
		change = 1;
	}

	return change;
}

#if 0
static int snd_cs46xx_vol_iec958_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
	return 0;
}