vx222_ops.c

linux-2.6.15.6

	/* `data' is a value between 0x0 and VX2_AKM_LEVEL_MAX = 0x093, in the case of the AKM codecs, we need
	   a look up table, as there is no linear matching between the driver codec values
	   and the real dBu value
	*/
	snd_assert(data < sizeof(vx2_akm_gains_lut), return);

	switch (reg) {
	case XX_CODEC_LEVEL_LEFT_REGISTER:
		val = AKM_CODEC_LEFT_LEVEL_CMD;
		break;
	case XX_CODEC_LEVEL_RIGHT_REGISTER:
		val = AKM_CODEC_RIGHT_LEVEL_CMD;
		break;
	default:
		snd_BUG();
		return;
	}
	val |= vx2_akm_gains_lut[data];

	vx2_write_codec_reg(chip, val);
}


/*
 * write codec bit for old VX222 board
 */
static void vx2_old_write_codec_bit(vx_core_t *chip, int codec, unsigned int data)
{
	int i;

	/* activate access to codec registers */
	vx_inl(chip, HIFREQ);

	for (i = 0; i < 24; i++, data <<= 1)
		vx_outl(chip, DATA, ((data & 0x800000) ? VX_DATA_CODEC_MASK : 0));

	/* Terminate access to codec registers */
	vx_inl(chip, RUER);
}


/*
 * reset codec bit
 */
static void vx2_reset_codec(vx_core_t *_chip)
{
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;

	/* Set the reset CODEC bit to 0. */
	vx_outl(chip, CDSP, chip->regCDSP &~ VX_CDSP_CODEC_RESET_MASK);
	vx_inl(chip, CDSP);
	snd_vx_delay(_chip, 10);
	/* Set the reset CODEC bit to 1. */
	chip->regCDSP |= VX_CDSP_CODEC_RESET_MASK;
	vx_outl(chip, CDSP, chip->regCDSP);
	vx_inl(chip, CDSP);
	if (_chip->type == VX_TYPE_BOARD) {
		snd_vx_delay(_chip, 1);
		return;
	}

	snd_vx_delay(_chip, 5);  /* additionnel wait time for AKM's */

	vx2_write_codec_reg(_chip, AKM_CODEC_POWER_CONTROL_CMD); /* DAC power up, ADC power up, Vref power down */
	
	vx2_write_codec_reg(_chip, AKM_CODEC_CLOCK_FORMAT_CMD); /* default */
	vx2_write_codec_reg(_chip, AKM_CODEC_MUTE_CMD); /* Mute = ON ,Deemphasis = OFF */
	vx2_write_codec_reg(_chip, AKM_CODEC_RESET_OFF_CMD); /* DAC and ADC normal operation */

	if (_chip->type == VX_TYPE_MIC) {
		/* set up the micro input selector */
		chip->regSELMIC =  MICRO_SELECT_INPUT_NORM |
			MICRO_SELECT_PREAMPLI_G_0 |
			MICRO_SELECT_NOISE_T_52DB;

		/* reset phantom power supply */
		chip->regSELMIC &= ~MICRO_SELECT_PHANTOM_ALIM;

		vx_outl(_chip, SELMIC, chip->regSELMIC);
	}
}


/*
 * change the audio source
 */
static void vx2_change_audio_source(vx_core_t *_chip, int src)
{
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;

	switch (src) {
	case VX_AUDIO_SRC_DIGITAL:
		chip->regCFG |= VX_CFG_DATAIN_SEL_MASK;
		break;
	default:
		chip->regCFG &= ~VX_CFG_DATAIN_SEL_MASK;
		break;
	}
	vx_outl(chip, CFG, chip->regCFG);
}


/*
 * set the clock source
 */
static void vx2_set_clock_source(vx_core_t *_chip, int source)
{
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;

	if (source == INTERNAL_QUARTZ)
		chip->regCFG &= ~VX_CFG_CLOCKIN_SEL_MASK;
	else
		chip->regCFG |= VX_CFG_CLOCKIN_SEL_MASK;
	vx_outl(chip, CFG, chip->regCFG);
}

/*
 * reset the board
 */
static void vx2_reset_board(vx_core_t *_chip, int cold_reset)
{
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;

	/* initialize the register values */
	chip->regCDSP = VX_CDSP_CODEC_RESET_MASK | VX_CDSP_DSP_RESET_MASK ;
	chip->regCFG = 0;
}



/*
 * input level controls for VX222 Mic
 */

/* Micro level is specified to be adjustable from -96dB to 63 dB (board coded 0x00 ... 318),
 * 318 = 210 + 36 + 36 + 36   (210 = +9dB variable) (3 * 36 = 3 steps of 18dB pre ampli)
 * as we will mute if less than -110dB, so let's simply use line input coded levels and add constant offset !
 */
#define V2_MICRO_LEVEL_RANGE        (318 - 255)

static void vx2_set_input_level(struct snd_vx222 *chip)
{
	int i, miclevel, preamp;
	unsigned int data;

	miclevel = chip->mic_level;
	miclevel += V2_MICRO_LEVEL_RANGE; /* add 318 - 0xff */
	preamp = 0;
        while (miclevel > 210) { /* limitation to +9dB of 3310 real gain */
		preamp++;	/* raise pre ampli + 18dB */
		miclevel -= (18 * 2);   /* lower level 18 dB (*2 because of 0.5 dB steps !) */
        }
	snd_assert(preamp < 4, return);

	/* set pre-amp level */
	chip->regSELMIC &= ~MICRO_SELECT_PREAMPLI_MASK;
	chip->regSELMIC |= (preamp << MICRO_SELECT_PREAMPLI_OFFSET) & MICRO_SELECT_PREAMPLI_MASK;
	vx_outl(chip, SELMIC, chip->regSELMIC);

	data = (unsigned int)miclevel << 16 |
		(unsigned int)chip->input_level[1] << 8 |
		(unsigned int)chip->input_level[0];
	vx_inl(chip, DATA); /* Activate input level programming */

	/* We have to send 32 bits (4 x 8 bits) */
	for (i = 0; i < 32; i++, data <<= 1)
		vx_outl(chip, DATA, ((data & 0x80000000) ? VX_DATA_CODEC_MASK : 0));

	vx_inl(chip, RUER); /* Terminate input level programming */
}


#define MIC_LEVEL_MAX	0xff

/*
 * controls API for input levels
 */

/* input levels */
static int vx_input_level_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 = MIC_LEVEL_MAX;
	return 0;
}

static int vx_input_level_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
	down(&_chip->mixer_mutex);
	ucontrol->value.integer.value[0] = chip->input_level[0];
	ucontrol->value.integer.value[1] = chip->input_level[1];
	up(&_chip->mixer_mutex);
	return 0;
}

static int vx_input_level_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
	down(&_chip->mixer_mutex);
	if (chip->input_level[0] != ucontrol->value.integer.value[0] ||
	    chip->input_level[1] != ucontrol->value.integer.value[1]) {
		chip->input_level[0] = ucontrol->value.integer.value[0];
		chip->input_level[1] = ucontrol->value.integer.value[1];
		vx2_set_input_level(chip);
		up(&_chip->mixer_mutex);
		return 1;
	}
	up(&_chip->mixer_mutex);
	return 0;
}

/* mic level */
static int vx_mic_level_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 = MIC_LEVEL_MAX;
	return 0;
}

static int vx_mic_level_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
	ucontrol->value.integer.value[0] = chip->mic_level;
	return 0;
}

static int vx_mic_level_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *_chip = snd_kcontrol_chip(kcontrol);
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
	down(&_chip->mixer_mutex);
	if (chip->mic_level != ucontrol->value.integer.value[0]) {
		chip->mic_level = ucontrol->value.integer.value[0];
		vx2_set_input_level(chip);
		up(&_chip->mixer_mutex);
		return 1;
	}
	up(&_chip->mixer_mutex);
	return 0;
}

static snd_kcontrol_new_t vx_control_input_level = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Capture Volume",
	.info =		vx_input_level_info,
	.get =		vx_input_level_get,
	.put =		vx_input_level_put,
};

static snd_kcontrol_new_t vx_control_mic_level = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Mic Capture Volume",
	.info =		vx_mic_level_info,
	.get =		vx_mic_level_get,
	.put =		vx_mic_level_put,
};

/*
 * FIXME: compressor/limiter implementation is missing yet...
 */

static int vx2_add_mic_controls(vx_core_t *_chip)
{
	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
	int err;

	if (_chip->type != VX_TYPE_MIC)
		return 0;

	/* mute input levels */
	chip->input_level[0] = chip->input_level[1] = 0;
	chip->mic_level = 0;
	vx2_set_input_level(chip);

	/* controls */
	if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_input_level, chip))) < 0)
		return err;
	if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_level, chip))) < 0)
		return err;

	return 0;
}


/*
 * callbacks
 */
struct snd_vx_ops vx222_ops = {
	.in8 = vx2_inb,
	.in32 = vx2_inl,
	.out8 = vx2_outb,
	.out32 = vx2_outl,
	.test_and_ack = vx2_test_and_ack,
	.validate_irq = vx2_validate_irq,
	.akm_write = vx2_write_akm,
	.reset_codec = vx2_reset_codec,
	.change_audio_source = vx2_change_audio_source,
	.set_clock_source = vx2_set_clock_source,
	.load_dsp = vx2_load_dsp,
	.reset_dsp = vx2_reset_dsp,
	.reset_board = vx2_reset_board,
	.dma_write = vx2_dma_write,
	.dma_read = vx2_dma_read,
	.add_controls = vx2_add_mic_controls,
};

/* for old VX222 board */
struct snd_vx_ops vx222_old_ops = {
	.in8 = vx2_inb,
	.in32 = vx2_inl,
	.out8 = vx2_outb,
	.out32 = vx2_outl,
	.test_and_ack = vx2_test_and_ack,
	.validate_irq = vx2_validate_irq,
	.write_codec = vx2_old_write_codec_bit,
	.reset_codec = vx2_reset_codec,
	.change_audio_source = vx2_change_audio_source,
	.set_clock_source = vx2_set_clock_source,
	.load_dsp = vx2_load_dsp,
	.reset_dsp = vx2_reset_dsp,
	.reset_board = vx2_reset_board,
	.dma_write = vx2_dma_write,
	.dma_read = vx2_dma_read,
};