cs46xx_lib.c

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static int snd_cs46xx_vol_iec958_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->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
	    chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
		cs46xx_dsp_set_iec958_volume (chip,
					      ucontrol->value.integer.value[0],
					      ucontrol->value.integer.value[1]);
		change = 1;
	}

	return change;
}
#endif

static int snd_mixer_boolean_info(snd_kcontrol_t *kcontrol, 
				  snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_cs46xx_iec958_get(snd_kcontrol_t *kcontrol, 
                                 snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int reg = kcontrol->private_value;

	if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
		ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
	else
		ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;

	return 0;
}

static int snd_cs46xx_iec958_put(snd_kcontrol_t *kcontrol, 
                                  snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int change, res;

	switch (kcontrol->private_value) {
	case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
		down (&chip->spos_mutex);
		change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
		if (ucontrol->value.integer.value[0] && !change) 
			cs46xx_dsp_enable_spdif_out(chip);
		else if (change && !ucontrol->value.integer.value[0])
			cs46xx_dsp_disable_spdif_out(chip);

		res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
		up (&chip->spos_mutex);
		break;
	case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
		change = chip->dsp_spos_instance->spdif_status_in;
		if (ucontrol->value.integer.value[0] && !change) {
			cs46xx_dsp_enable_spdif_in(chip);
			/* restore volume */
		}
		else if (change && !ucontrol->value.integer.value[0])
			cs46xx_dsp_disable_spdif_in(chip);
		
		res = (change != chip->dsp_spos_instance->spdif_status_in);
		break;
	default:
		res = -EINVAL;
		snd_assert(0, (void)0);
	}

	return res;
}

static int snd_cs46xx_adc_capture_get(snd_kcontrol_t *kcontrol, 
                                      snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;

	if (ins->adc_input != NULL) 
		ucontrol->value.integer.value[0] = 1;
	else 
		ucontrol->value.integer.value[0] = 0;
	
	return 0;
}

static int snd_cs46xx_adc_capture_put(snd_kcontrol_t *kcontrol, 
                                      snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
	int change = 0;

	if (ucontrol->value.integer.value[0] && !ins->adc_input) {
		cs46xx_dsp_enable_adc_capture(chip);
		change = 1;
	} else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
		cs46xx_dsp_disable_adc_capture(chip);
		change = 1;
	}
	return change;
}

static int snd_cs46xx_pcm_capture_get(snd_kcontrol_t *kcontrol, 
                                      snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;

	if (ins->pcm_input != NULL) 
		ucontrol->value.integer.value[0] = 1;
	else 
		ucontrol->value.integer.value[0] = 0;

	return 0;
}


static int snd_cs46xx_pcm_capture_put(snd_kcontrol_t *kcontrol, 
                                      snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
	int change = 0;

	if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
		cs46xx_dsp_enable_pcm_capture(chip);
		change = 1;
	} else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
		cs46xx_dsp_disable_pcm_capture(chip);
		change = 1;
	}

	return change;
}

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

	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);

	if (val1 & EGPIODR_GPOE0)
		ucontrol->value.integer.value[0] = 1;
	else
		ucontrol->value.integer.value[0] = 0;

	return 0;
}

/*
 *	Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
 */ 
static int snd_herc_spdif_select_put(snd_kcontrol_t *kcontrol, 
                                       snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);

	if (ucontrol->value.integer.value[0]) {
		/* optical is default */
		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
				   EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
				   EGPIOPTR_GPPT0 | val2); /* open-drain on output */
	} else {
		/* coaxial */
		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
	}

	/* checking diff from the EGPIO direction register 
	   should be enough */
	return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
}


static int snd_cs46xx_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int snd_cs46xx_spdif_default_get(snd_kcontrol_t * kcontrol,
					snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;

	down (&chip->spos_mutex);
	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
	ucontrol->value.iec958.status[2] = 0;
	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
	up (&chip->spos_mutex);

	return 0;
}

static int snd_cs46xx_spdif_default_put(snd_kcontrol_t * kcontrol,
					snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t * chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
	unsigned int val;
	int change;

	down (&chip->spos_mutex);
	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
		/* left and right validity bit */
		(1 << 13) | (1 << 12);


	change = (unsigned int)ins->spdif_csuv_default != val;
	ins->spdif_csuv_default = val;

	if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);

	up (&chip->spos_mutex);

	return change;
}

static int snd_cs46xx_spdif_mask_get(snd_kcontrol_t * kcontrol,
				     snd_ctl_elem_value_t * ucontrol)
{
	ucontrol->value.iec958.status[0] = 0xff;
	ucontrol->value.iec958.status[1] = 0xff;
	ucontrol->value.iec958.status[2] = 0x00;
	ucontrol->value.iec958.status[3] = 0xff;
	return 0;
}

static int snd_cs46xx_spdif_stream_get(snd_kcontrol_t * kcontrol,
                                         snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;

	down (&chip->spos_mutex);
	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
	ucontrol->value.iec958.status[2] = 0;
	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
	up (&chip->spos_mutex);

	return 0;
}

static int snd_cs46xx_spdif_stream_put(snd_kcontrol_t * kcontrol,
                                        snd_ctl_elem_value_t * ucontrol)
{
	cs46xx_t * chip = snd_kcontrol_chip(kcontrol);
	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
	unsigned int val;
	int change;

	down (&chip->spos_mutex);
	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
		/* left and right validity bit */
		(1 << 13) | (1 << 12);


	change = ins->spdif_csuv_stream != val;
	ins->spdif_csuv_stream = val;

	if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);

	up (&chip->spos_mutex);

	return change;
}

#endif /* CONFIG_SND_CS46XX_NEW_DSP */


#ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
static int snd_cs46xx_egpio_select_info(snd_kcontrol_t *kcontrol, 
                                        snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 8;
	return 0;
}

static int snd_cs46xx_egpio_select_get(snd_kcontrol_t *kcontrol, 
                                       snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = chip->current_gpio;

	return 0;
}

static int snd_cs46xx_egpio_select_put(snd_kcontrol_t *kcontrol, 
                                       snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int change = (chip->current_gpio != ucontrol->value.integer.value[0]);
	chip->current_gpio = ucontrol->value.integer.value[0];

	return change;
}


static int snd_cs46xx_egpio_get(snd_kcontrol_t *kcontrol, 
                                       snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int reg = kcontrol->private_value;

	snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);
	ucontrol->value.integer.value[0] = 
		(snd_cs46xx_peekBA0(chip, reg) & (1 << chip->current_gpio)) ? 1 : 0;
  
	return 0;
}

static int snd_cs46xx_egpio_put(snd_kcontrol_t *kcontrol, 
                                       snd_ctl_elem_value_t *ucontrol)
{
	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
	int reg = kcontrol->private_value;
	int val = snd_cs46xx_peekBA0(chip, reg);
	int oldval = val;
	snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);

	if (ucontrol->value.integer.value[0])
		val |= (1 << chip->current_gpio);
	else
		val &= ~(1 << chip->current_gpio);

	snd_cs46xx_pokeBA0(chip, reg,val);
	snd_printdd ("put: val %08x oldval %08x\n",val,oldval);

	return (oldval != val);
}
#endif /* CONFIG_SND_CS46XX_DEBUG_GPIO */

static snd_kcontrol_new_t snd_cs46xx_controls[] __devinitdata = {
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "DAC Volume",
	.info = snd_cs46xx_vol_info,
#ifndef CONFIG_SND_CS46XX_NEW_DSP
	.get = snd_cs46xx_vol_get,
	.put = snd_cs46xx_vol_put,
	.private_value = BA1_PVOL,
#else
	.get = snd_cs46xx_vol_dac_get,
	.put = snd_cs46xx_vol_dac_put,
#endif
},

{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "ADC Volume",
	.info = snd_cs46xx_vol_info,
	.get = snd_cs46xx_vol_get,
	.put = snd_cs46xx_vol_put,
#ifndef CONFIG_SND_CS46XX_NEW_DSP
	.private_value = BA1_CVOL,
#else
	.private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
#endif
},
#ifdef CONFIG_SND_CS46XX_NEW_DSP
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "ADC Capture Switch",
	.info = snd_mixer_boolean_info,
	.get = snd_cs46xx_adc_capture_get,
	.put = snd_cs46xx_adc_capture_put
},
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "DAC Capture Switch",
	.info = snd_mixer_boolean_info,
	.get = snd_cs46xx_pcm_capture_get,
	.put = snd_cs46xx_pcm_capture_put
},
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "IEC958 Output Switch",
	.info = snd_mixer_boolean_info,
	.get = snd_cs46xx_iec958_get,
	.put = snd_cs46xx_iec958_put,
	.private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
},
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "IEC958 Input Switch",
	.info = snd_mixer_boolean_info,
	.get = snd_cs46xx_iec958_get,
	.put = snd_cs46xx_iec958_put,
	.private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
},
#if 0
/* Input IEC958 volume does not work for the moment. (Benny) */
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "IEC958 Input Volume",
	.info = snd_cs46xx_vol_info,
	.get = snd_cs46xx_vol_iec958_get,
	.put = snd_cs46xx_vol_iec958_put,
	.private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
},
#endif
{
	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
	.name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
	.info =	 snd_cs46xx_spdif_info,
	.get =	 snd_cs46xx_spdif_default_get,
	.put =   snd_cs46xx_spdif_default_put,
},
{
	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
	.info =	 snd_cs46xx_spdif_info,
        .get =	 snd_cs46xx_spdif_mask_get,
	.access = SNDRV_CTL_ELEM_ACCESS_READ
},
{
	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
	.info =	 snd_cs46xx_spdif_info,
	.get =	 snd_cs46xx_spdif_stream_get,
	.put =	 snd_cs46xx_spdif_stream_put
},

#endif
#ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "EGPIO select",
	.info = snd_cs46xx_egpio_select_info,
	.get = snd_cs46xx_egpio_select_get,
	.put = snd_cs46xx_egpio_select_