aureon.c

linux 内核源代码

	ucontrol->value.integer.value[0] = aureon_ac97_read(ice, AC97_MIC) & 0x0020 ? 0 : 1;

	mutex_unlock(&ice->gpio_mutex);
	return 0;
}

static int aureon_ac97_micboost_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	unsigned short ovol, nvol;
	int change;

	snd_ice1712_save_gpio_status(ice);
	
	ovol = aureon_ac97_read(ice, AC97_MIC);
	nvol = (ucontrol->value.integer.value[0] ? 0x0000 : 0x0020) | (ovol & ~0x0020);
	
	if ((change = (ovol != nvol)))
		aureon_ac97_write(ice, AC97_MIC, nvol);
		
	snd_ice1712_restore_gpio_status(ice);

	return change;
}

/*
 * write data in the SPI mode
 */
static void aureon_spi_write(struct snd_ice1712 *ice, unsigned int cs, unsigned int data, int bits)
{
	unsigned int tmp;
	int i;
	unsigned int mosi, clk;

	tmp = snd_ice1712_gpio_read(ice);

	if (ice->eeprom.subvendor == VT1724_SUBDEVICE_PRODIGY71LT ||
	    ice->eeprom.subvendor == VT1724_SUBDEVICE_PRODIGY71XT) {
		snd_ice1712_gpio_set_mask(ice, ~(PRODIGY_SPI_MOSI|PRODIGY_SPI_CLK|PRODIGY_WM_CS));
		mosi = PRODIGY_SPI_MOSI;
		clk = PRODIGY_SPI_CLK;
	}
	else {
		snd_ice1712_gpio_set_mask(ice, ~(AUREON_WM_RW|AUREON_SPI_MOSI|AUREON_SPI_CLK|
						 AUREON_WM_CS|AUREON_CS8415_CS));
		mosi = AUREON_SPI_MOSI;
		clk = AUREON_SPI_CLK;
		
		tmp |= AUREON_WM_RW;
	}
	
	tmp &= ~cs;
	snd_ice1712_gpio_write(ice, tmp);
	udelay(1);

	for (i = bits - 1; i >= 0; i--) {
		tmp &= ~clk;
		snd_ice1712_gpio_write(ice, tmp);
		udelay(1);
		if (data & (1 << i))
			tmp |= mosi;
		else
			tmp &= ~mosi;
		snd_ice1712_gpio_write(ice, tmp);
		udelay(1);
		tmp |= clk;
		snd_ice1712_gpio_write(ice, tmp);
		udelay(1);
	}

	tmp &= ~clk;
	tmp |= cs;
	snd_ice1712_gpio_write(ice, tmp);
	udelay(1);
	tmp |= clk;
	snd_ice1712_gpio_write(ice, tmp);
	udelay(1);
}

/*
 * Read data in SPI mode
 */
static void aureon_spi_read(struct snd_ice1712 *ice, unsigned int cs, unsigned int data, int bits, unsigned char *buffer, int size) {
	int i, j;
	unsigned int tmp;

	tmp = (snd_ice1712_gpio_read(ice) & ~AUREON_SPI_CLK) | AUREON_CS8415_CS|AUREON_WM_CS;
	snd_ice1712_gpio_write(ice, tmp);
	tmp &= ~cs;
	snd_ice1712_gpio_write(ice, tmp);
	udelay(1);

	for (i=bits-1; i>=0; i--) {
		if (data & (1 << i))
			tmp |= AUREON_SPI_MOSI;
		else
			tmp &= ~AUREON_SPI_MOSI;
		snd_ice1712_gpio_write(ice, tmp);
		udelay(1);

		tmp |= AUREON_SPI_CLK;
		snd_ice1712_gpio_write(ice, tmp);
		udelay(1);

		tmp &= ~AUREON_SPI_CLK;
		snd_ice1712_gpio_write(ice, tmp);
		udelay(1);
	}

	for (j=0; j<size; j++) {
		unsigned char outdata = 0;
		for (i=7; i>=0; i--) {
			tmp = snd_ice1712_gpio_read(ice);
			outdata <<= 1;
			outdata |= (tmp & AUREON_SPI_MISO) ? 1 : 0;
			udelay(1);

			tmp |= AUREON_SPI_CLK;
			snd_ice1712_gpio_write(ice, tmp);
			udelay(1);

			tmp &= ~AUREON_SPI_CLK;
			snd_ice1712_gpio_write(ice, tmp);
			udelay(1);
		}
		buffer[j] = outdata;
	}

	tmp |= cs;
	snd_ice1712_gpio_write(ice, tmp);
}

static unsigned char aureon_cs8415_get(struct snd_ice1712 *ice, int reg) {
	unsigned char val;
	aureon_spi_write(ice, AUREON_CS8415_CS, 0x2000 | reg, 16);
	aureon_spi_read(ice, AUREON_CS8415_CS, 0x21, 8, &val, 1);
	return val;
}

static void aureon_cs8415_read(struct snd_ice1712 *ice, int reg, unsigned char *buffer, int size) {
	aureon_spi_write(ice, AUREON_CS8415_CS, 0x2000 | reg, 16);
	aureon_spi_read(ice, AUREON_CS8415_CS, 0x21, 8, buffer, size);
}

static void aureon_cs8415_put(struct snd_ice1712 *ice, int reg, unsigned char val) {
	aureon_spi_write(ice, AUREON_CS8415_CS, 0x200000 | (reg << 8) | val, 24);
}

/*
 * get the current register value of WM codec
 */
static unsigned short wm_get(struct snd_ice1712 *ice, int reg)
{
	reg <<= 1;
	return ((unsigned short)ice->akm[0].images[reg] << 8) |
		ice->akm[0].images[reg + 1];
}

/*
 * set the register value of WM codec
 */
static void wm_put_nocache(struct snd_ice1712 *ice, int reg, unsigned short val)
{
	aureon_spi_write(ice,
			 ((ice->eeprom.subvendor == VT1724_SUBDEVICE_PRODIGY71LT ||
			   ice->eeprom.subvendor == VT1724_SUBDEVICE_PRODIGY71XT) ?
			 PRODIGY_WM_CS : AUREON_WM_CS),
			(reg << 9) | (val & 0x1ff), 16);
}

/*
 * set the register value of WM codec and remember it
 */
static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
{
	wm_put_nocache(ice, reg, val);
	reg <<= 1;
	ice->akm[0].images[reg] = val >> 8;
	ice->akm[0].images[reg + 1] = val;
}

/*
 */
#define aureon_mono_bool_info		snd_ctl_boolean_mono_info

/*
 * AC'97 master playback mute controls (Mute on WM8770 chip)
 */
#define aureon_ac97_mmute_info		snd_ctl_boolean_mono_info

static int aureon_ac97_mmute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);

	mutex_lock(&ice->gpio_mutex);

	ucontrol->value.integer.value[0] = (wm_get(ice, WM_OUT_MUX1) >> 1) & 0x01;

	mutex_unlock(&ice->gpio_mutex);
	return 0;
}

static int aureon_ac97_mmute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) {
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	unsigned short ovol, nvol;
	int change;
	
	snd_ice1712_save_gpio_status(ice);
	
	ovol = wm_get(ice, WM_OUT_MUX1);
	nvol = (ovol & ~0x02) | (ucontrol->value.integer.value[0] ? 0x02 : 0x00);
	if ((change = (ovol != nvol)))
		wm_put(ice, WM_OUT_MUX1, nvol);
		
	snd_ice1712_restore_gpio_status(ice);

	return change;
}

static const DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1);
static const DECLARE_TLV_DB_SCALE(db_scale_wm_pcm, -6400, 50, 1);
static const DECLARE_TLV_DB_SCALE(db_scale_wm_adc, -1200, 100, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_ac97_master, -4650, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_ac97_gain, -3450, 150, 0);

/*
 * Logarithmic volume values for WM8770
 * Computed as 20 * Log10(255 / x)
 */
static const unsigned char wm_vol[256] = {
	127, 48, 42, 39, 36, 34, 33, 31, 30, 29, 28, 27, 27, 26, 25, 25, 24, 24, 23,
	23, 22, 22, 21, 21, 21, 20, 20, 20, 19, 19, 19, 18, 18, 18, 18, 17, 17, 17,
	17, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13,
	13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11,
	11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8,
	8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6,
	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
	5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3,
	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0
};

#define WM_VOL_MAX	(sizeof(wm_vol) - 1)
#define WM_VOL_MUTE	0x8000

static void wm_set_vol(struct snd_ice1712 *ice, unsigned int index, unsigned short vol, unsigned short master)
{
	unsigned char nvol;
	
	if ((master & WM_VOL_MUTE) || (vol & WM_VOL_MUTE))
		nvol = 0;
	else
		nvol = 127 - wm_vol[(((vol & ~WM_VOL_MUTE) * (master & ~WM_VOL_MUTE)) / 127) & WM_VOL_MAX];
	
	wm_put(ice, index, nvol);
	wm_put_nocache(ice, index, 0x180 | nvol);
}

/*
 * DAC mute control
 */
#define wm_pcm_mute_info	snd_ctl_boolean_mono_info

static int wm_pcm_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);

	mutex_lock(&ice->gpio_mutex);
	ucontrol->value.integer.value[0] = (wm_get(ice, WM_MUTE) & 0x10) ? 0 : 1;
	mutex_unlock(&ice->gpio_mutex);
	return 0;
}

static int wm_pcm_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	unsigned short nval, oval;
	int change;

	snd_ice1712_save_gpio_status(ice);
	oval = wm_get(ice, WM_MUTE);
	nval = (oval & ~0x10) | (ucontrol->value.integer.value[0] ? 0 : 0x10);
	if ((change = (nval != oval)))
		wm_put(ice, WM_MUTE, nval);
	snd_ice1712_restore_gpio_status(ice);

	return change;
}

/*
 * Master volume attenuation mixer control
 */
static int wm_master_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = WM_VOL_MAX;
	return 0;
}

static int wm_master_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int i;
	for (i=0; i<2; i++)
		ucontrol->value.integer.value[i] = ice->spec.aureon.master[i] & ~WM_VOL_MUTE;
	return 0;
}

static int wm_master_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int ch, change = 0;

	snd_ice1712_save_gpio_status(ice);
	for (ch = 0; ch < 2; ch++) {
		if (ucontrol->value.integer.value[ch] != ice->spec.aureon.master[ch]) {
			int dac;
			ice->spec.aureon.master[ch] &= WM_VOL_MUTE;
			ice->spec.aureon.master[ch] |= ucontrol->value.integer.value[ch];
			for (dac = 0; dac < ice->num_total_dacs; dac += 2)
				wm_set_vol(ice, WM_DAC_ATTEN + dac + ch,
					   ice->spec.aureon.vol[dac + ch],
					   ice->spec.aureon.master[ch]);
			change = 1;
		}
	}
	snd_ice1712_restore_gpio_status(ice);
	return change;
}

/*
 * DAC volume attenuation mixer control
 */
static int wm_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	int voices = kcontrol->private_value >> 8;
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = voices;
	uinfo->value.integer.min = 0;		/* mute (-101dB) */
	uinfo->value.integer.max = 0x7F;	/* 0dB */
	return 0;
}

static int wm_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int i, ofs, voices;

	voices = kcontrol->private_value >> 8;
	ofs = kcontrol->private_value & 0xff;
	for (i = 0; i < voices; i++)
		ucontrol->value.integer.value[i] = ice->spec.aureon.vol[ofs+i] & ~WM_VOL_MUTE;
	return 0;
}

static int wm_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int i, idx, ofs, voices;
	int change = 0;

	voices = kcontrol->private_value >> 8;
	ofs = kcontrol->private_value & 0xff;
	snd_ice1712_save_gpio_status(ice);
	for (i = 0; i < voices; i++) {
		idx  = WM_DAC_ATTEN + ofs + i;
		if (ucontrol->value.integer.value[i] != ice->spec.aureon.vol[ofs+i]) {
			ice->spec.aureon.vol[ofs+i] &= WM_VOL_MUTE;
			ice->spec.aureon.vol[ofs+i] |= ucontrol->value.integer.value[i];
			wm_set_vol(ice, idx, ice->spec.aureon.vol[ofs+i],
				   ice->spec.aureon.master[i]);
			change = 1;
		}
	}
	snd_ice1712_restore_gpio_status(ice);
	return change;
}

/*
 * WM8770 mute control
 */
static int wm_mute_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) {
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = kcontrol->private_value >> 8;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int wm_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int voices, ofs, i;
	
	voices = kcontrol->private_value >> 8;
	ofs = kcontrol->private_value & 0xFF;

	for (i = 0; i < voices; i++)
		ucontrol->value.integer.value[i] = (ice->spec.aureon.vol[ofs+i] & WM_VOL_MUTE) ? 0 : 1;
	return 0;
}

static int wm_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int change = 0, voices, ofs, i;

	voices = kcontrol->private_value >> 8;
	ofs = kcontrol->private_value & 0xFF;

	snd_ice1712_save_gpio_status(ice);
	for (i = 0; i < voices; i++) {
		int val = (ice->spec.aureon.vol[ofs + i] & WM_VOL_MUTE) ? 0 : 1;
		if (ucontrol->value.integer.value[i] != val) {
			ice->spec.aureon.vol[ofs + i] &= ~WM_VOL_MUTE;
			ice->spec.aureon.vol[ofs + i] |=
				ucontrol->value.integer.value[i] ? 0 : WM_VOL_MUTE;
			wm_set_vol(ice, ofs + i, ice->spec.aureon.vol[ofs + i],
				   ice->spec.aureon.master[i]);
			change = 1;
		}
	}
	snd_ice1712_restore_gpio_status(ice);

	return change;
}

/*
 * WM8770 master mute control
 */
#define wm_master_mute_info		snd_ctl_boolean_stereo_info

static int wm_master_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);