sonicvibes.c

linux 内核源代码

	.fifo_size =		0,
};

static struct snd_pcm_hardware snd_sonicvibes_capture =
{
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 SNDRV_PCM_INFO_MMAP_VALID),
	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
	.rate_min =		4000,
	.rate_max =		48000,
	.channels_min =		1,
	.channels_max =		2,
	.buffer_bytes_max =	(128*1024),
	.period_bytes_min =	32,
	.period_bytes_max =	(128*1024),
	.periods_min =		1,
	.periods_max =		1024,
	.fifo_size =		0,
};

static int snd_sonicvibes_playback_open(struct snd_pcm_substream *substream)
{
	struct sonicvibes *sonic = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;

	sonic->mode |= SV_MODE_PLAY;
	sonic->playback_substream = substream;
	runtime->hw = snd_sonicvibes_playback;
	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, snd_sonicvibes_hw_constraint_dac_rate, NULL, SNDRV_PCM_HW_PARAM_RATE, -1);
	return 0;
}

static int snd_sonicvibes_capture_open(struct snd_pcm_substream *substream)
{
	struct sonicvibes *sonic = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;

	sonic->mode |= SV_MODE_CAPTURE;
	sonic->capture_substream = substream;
	runtime->hw = snd_sonicvibes_capture;
	snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
				      &snd_sonicvibes_hw_constraints_adc_clock);
	return 0;
}

static int snd_sonicvibes_playback_close(struct snd_pcm_substream *substream)
{
	struct sonicvibes *sonic = snd_pcm_substream_chip(substream);

	sonic->playback_substream = NULL;
	sonic->mode &= ~SV_MODE_PLAY;
	return 0;
}

static int snd_sonicvibes_capture_close(struct snd_pcm_substream *substream)
{
	struct sonicvibes *sonic = snd_pcm_substream_chip(substream);

	sonic->capture_substream = NULL;
	sonic->mode &= ~SV_MODE_CAPTURE;
	return 0;
}

static struct snd_pcm_ops snd_sonicvibes_playback_ops = {
	.open =		snd_sonicvibes_playback_open,
	.close =	snd_sonicvibes_playback_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_sonicvibes_hw_params,
	.hw_free =	snd_sonicvibes_hw_free,
	.prepare =	snd_sonicvibes_playback_prepare,
	.trigger =	snd_sonicvibes_playback_trigger,
	.pointer =	snd_sonicvibes_playback_pointer,
};

static struct snd_pcm_ops snd_sonicvibes_capture_ops = {
	.open =		snd_sonicvibes_capture_open,
	.close =	snd_sonicvibes_capture_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_sonicvibes_hw_params,
	.hw_free =	snd_sonicvibes_hw_free,
	.prepare =	snd_sonicvibes_capture_prepare,
	.trigger =	snd_sonicvibes_capture_trigger,
	.pointer =	snd_sonicvibes_capture_pointer,
};

static int __devinit snd_sonicvibes_pcm(struct sonicvibes * sonic, int device, struct snd_pcm ** rpcm)
{
	struct snd_pcm *pcm;
	int err;

	if ((err = snd_pcm_new(sonic->card, "s3_86c617", device, 1, 1, &pcm)) < 0)
		return err;
	snd_assert(pcm != NULL, return -EINVAL);

	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sonicvibes_playback_ops);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_sonicvibes_capture_ops);

	pcm->private_data = sonic;
	pcm->info_flags = 0;
	strcpy(pcm->name, "S3 SonicVibes");
	sonic->pcm = pcm;

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(sonic->pci), 64*1024, 128*1024);

	if (rpcm)
		*rpcm = pcm;
	return 0;
}

/*
 *  Mixer part
 */

#define SONICVIBES_MUX(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_sonicvibes_info_mux, \
  .get = snd_sonicvibes_get_mux, .put = snd_sonicvibes_put_mux }

static int snd_sonicvibes_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	static char *texts[7] = {
		"CD", "PCM", "Aux1", "Line", "Aux0", "Mic", "Mix"
	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 2;
	uinfo->value.enumerated.items = 7;
	if (uinfo->value.enumerated.item >= 7)
		uinfo->value.enumerated.item = 6;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_sonicvibes_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct sonicvibes *sonic = snd_kcontrol_chip(kcontrol);
	
	spin_lock_irq(&sonic->reg_lock);
	ucontrol->value.enumerated.item[0] = ((snd_sonicvibes_in1(sonic, SV_IREG_LEFT_ADC) & SV_RECSRC_OUT) >> 5) - 1;
	ucontrol->value.enumerated.item[1] = ((snd_sonicvibes_in1(sonic, SV_IREG_RIGHT_ADC) & SV_RECSRC_OUT) >> 5) - 1;
	spin_unlock_irq(&sonic->reg_lock);
	return 0;
}

static int snd_sonicvibes_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct sonicvibes *sonic = snd_kcontrol_chip(kcontrol);
	unsigned short left, right, oval1, oval2;
	int change;
	
	if (ucontrol->value.enumerated.item[0] >= 7 ||
	    ucontrol->value.enumerated.item[1] >= 7)
		return -EINVAL;
	left = (ucontrol->value.enumerated.item[0] + 1) << 5;
	right = (ucontrol->value.enumerated.item[1] + 1) << 5;
	spin_lock_irq(&sonic->reg_lock);
	oval1 = snd_sonicvibes_in1(sonic, SV_IREG_LEFT_ADC);
	oval2 = snd_sonicvibes_in1(sonic, SV_IREG_RIGHT_ADC);
	left = (oval1 & ~SV_RECSRC_OUT) | left;
	right = (oval2 & ~SV_RECSRC_OUT) | right;
	change = left != oval1 || right != oval2;
	snd_sonicvibes_out1(sonic, SV_IREG_LEFT_ADC, left);
	snd_sonicvibes_out1(sonic, SV_IREG_RIGHT_ADC, right);
	spin_unlock_irq(&sonic->reg_lock);
	return change;
}

#define SONICVIBES_SINGLE(xname, xindex, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_sonicvibes_info_single, \
  .get = snd_sonicvibes_get_single, .put = snd_sonicvibes_put_single, \
  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }

static int snd_sonicvibes_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	int mask = (kcontrol->private_value >> 16) & 0xff;

	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_sonicvibes_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct sonicvibes *sonic = snd_kcontrol_chip(kcontrol);
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	
	spin_lock_irq(&sonic->reg_lock);
	ucontrol->value.integer.value[0] = (snd_sonicvibes_in1(sonic, reg)>> shift) & mask;
	spin_unlock_irq(&sonic->reg_lock);
	if (invert)
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
	return 0;
}

static int snd_sonicvibes_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct sonicvibes *sonic = snd_kcontrol_chip(kcontrol);
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	int change;
	unsigned short val, oval;
	
	val = (ucontrol->value.integer.value[0] & mask);
	if (invert)
		val = mask - val;
	val <<= shift;
	spin_lock_irq(&sonic->reg_lock);
	oval = snd_sonicvibes_in1(sonic, reg);
	val = (oval & ~(mask << shift)) | val;
	change = val != oval;
	snd_sonicvibes_out1(sonic, reg, val);
	spin_unlock_irq(&sonic->reg_lock);
	return change;
}

#define SONICVIBES_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_sonicvibes_info_double, \
  .get = snd_sonicvibes_get_double, .put = snd_sonicvibes_put_double, \
  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }

static int snd_sonicvibes_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	int mask = (kcontrol->private_value >> 24) & 0xff;

	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_sonicvibes_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct sonicvibes *sonic = snd_kcontrol_chip(kcontrol);
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	
	spin_lock_irq(&sonic->reg_lock);
	ucontrol->value.integer.value[0] = (snd_sonicvibes_in1(sonic, left_reg) >> shift_left) & mask;
	ucontrol->value.integer.value[1] = (snd_sonicvibes_in1(sonic, right_reg) >> shift_right) & mask;
	spin_unlock_irq(&sonic->reg_lock);
	if (invert) {
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
	}
	return 0;
}

static int snd_sonicvibes_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct sonicvibes *sonic = snd_kcontrol_chip(kcontrol);
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	int change;
	unsigned short val1, val2, oval1, oval2;
	
	val1 = ucontrol->value.integer.value[0] & mask;
	val2 = ucontrol->value.integer.value[1] & mask;
	if (invert) {
		val1 = mask - val1;
		val2 = mask - val2;
	}
	val1 <<= shift_left;
	val2 <<= shift_right;
	spin_lock_irq(&sonic->reg_lock);
	oval1 = snd_sonicvibes_in1(sonic, left_reg);
	oval2 = snd_sonicvibes_in1(sonic, right_reg);
	val1 = (oval1 & ~(mask << shift_left)) | val1;
	val2 = (oval2 & ~(mask << shift_right)) | val2;
	change = val1 != oval1 || val2 != oval2;
	snd_sonicvibes_out1(sonic, left_reg, val1);
	snd_sonicvibes_out1(sonic, right_reg, val2);
	spin_unlock_irq(&sonic->reg_lock);
	return change;
}

static struct snd_kcontrol_new snd_sonicvibes_controls[] __devinitdata = {
SONICVIBES_DOUBLE("Capture Volume", 0, SV_IREG_LEFT_ADC, SV_IREG_RIGHT_ADC, 0, 0, 15, 0),
SONICVIBES_DOUBLE("Aux Playback Switch", 0, SV_IREG_LEFT_AUX1, SV_IREG_RIGHT_AUX1, 7, 7, 1, 1),
SONICVIBES_DOUBLE("Aux Playback Volume", 0, SV_IREG_LEFT_AUX1, SV_IREG_RIGHT_AUX1, 0, 0, 31, 1),
SONICVIBES_DOUBLE("CD Playback Switch", 0, SV_IREG_LEFT_CD, SV_IREG_RIGHT_CD, 7, 7, 1, 1),
SONICVIBES_DOUBLE("CD Playback Volume", 0, SV_IREG_LEFT_CD, SV_IREG_RIGHT_CD, 0, 0, 31, 1),
SONICVIBES_DOUBLE("Line Playback Switch", 0, SV_IREG_LEFT_LINE, SV_IREG_RIGHT_LINE, 7, 7, 1, 1),
SONICVIBES_DOUBLE("Line Playback Volume", 0, SV_IREG_LEFT_LINE, SV_IREG_RIGHT_LINE, 0, 0, 31, 1),
SONICVIBES_SINGLE("Mic Playback Switch", 0, SV_IREG_MIC, 7, 1, 1),
SONICVIBES_SINGLE("Mic Playback Volume", 0, SV_IREG_MIC, 0, 15, 1),
SONICVIBES_SINGLE("Mic Boost", 0, SV_IREG_LEFT_ADC, 4, 1, 0),
SONICVIBES_DOUBLE("Synth Playback Switch", 0, SV_IREG_LEFT_SYNTH, SV_IREG_RIGHT_SYNTH, 7, 7, 1, 1),
SONICVIBES_DOUBLE("Synth Playback Volume", 0, SV_IREG_LEFT_SYNTH, SV_IREG_RIGHT_SYNTH, 0, 0, 31, 1),
SONICVIBES_DOUBLE("Aux Playback Switch", 1, SV_IREG_LEFT_AUX2, SV_IREG_RIGHT_AUX2, 7, 7, 1, 1),
SONICVIBES_DOUBLE("Aux Playback Volume", 1, SV_IREG_LEFT_AUX2, SV_IREG_RIGHT_AUX2, 0, 0, 31, 1),
SONICVIBES_DOUBLE("Master Playback Switch", 0, SV_IREG_LEFT_ANALOG, SV_IREG_RIGHT_ANALOG, 7, 7, 1, 1),
SONICVIBES_DOUBLE("Master Playback Volume", 0, SV_IREG_LEFT_ANALOG, SV_IREG_RIGHT_ANALOG, 0, 0, 31, 1),
SONICVIBES_DOUBLE("PCM Playback Switch", 0, SV_IREG_LEFT_PCM, SV_IREG_RIGHT_PCM, 7, 7, 1, 1),
SONICVIBES_DOUBLE("PCM Playback Volume", 0, SV_IREG_LEFT_PCM, SV_IREG_RIGHT_PCM, 0, 0, 63, 1),
SONICVIBES_SINGLE("Loopback Capture Switch", 0, SV_IREG_ADC_OUTPUT_CTRL, 0, 1, 0),
SONICVIBES_SINGLE("Loopback Capture Volume", 0, SV_IREG_ADC_OUTPUT_CTRL, 2, 63, 1),
SONICVIBES_MUX("Capture Source", 0)
};

static void snd_sonicvibes_master_free(struct snd_kcontrol *kcontrol)
{
	struct sonicvibes *sonic = snd_kcontrol_chip(kcontrol);
	sonic->master_mute = NULL;
	sonic->master_volume = NULL;
}

static int __devinit snd_sonicvibes_mixer(struct sonicvibes * sonic)
{
	struct snd_card *card;
	struct snd_kcontrol *kctl;
	unsigned int idx;
	int err;

	snd_assert(sonic != NULL && sonic->card != NULL, return -EINVAL);
	card = sonic->card;
	strcpy(card->mixername, "S3 SonicVibes");

	for (idx = 0; idx < ARRAY_SIZE(snd_sonicvibes_controls); idx++) {
		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_sonicvibes_controls[idx], sonic))) < 0)
			return err;
		switch (idx) {
		case 0:
		case 1: kctl->private_free = snd_sonicvibes_master_free; break;
		}
	}
	return 0;
}

/*

 */

static void snd_sonicvibes_proc_read(struct snd_info_entry *entry, 
				     struct snd_info_buffer *buffer)
{
	struct sonicvibes *sonic = entry->private_data;
	unsigned char tmp;

	tmp = sonic->srs_space & 0x0f;
	snd_iprintf(buffer, "SRS 3D           : %s\n",
		    sonic->srs_space & 0x80 ? "off" : "on");
	snd_iprintf(buffer, "SRS Space        : %s\n",
		    tmp == 0x00 ? "100%" :
		    tmp == 0x01 ? "75%" :
		    tmp == 0x02 ? "50%" :
		    tmp == 0x03 ? "25%" : "0%");
	tmp = sonic->srs_center & 0x0f;
	snd_iprintf(buffer, "SRS Center       : %s\n",
		    tmp == 0x00 ? "100%" :
		    tmp == 0x01 ? "75%" :
		    tmp == 0x02 ? "50%" :
		    tmp == 0x03 ? "25%" : "0%");
	tmp = sonic->wave_source & 0x03;
	snd_iprintf(buffer, "WaveTable Source : %s\n",
		    tmp == 0x00 ? "on-board ROM" :
		    tmp == 0x01 ? "PCI bus" : "on-board ROM + PCI bus");
	tmp = sonic->mpu_switch;
	snd_iprintf(buffer, "Onboard synth    : %s\n", tmp & 0x01 ? "on" : "off");