ac97_patch.c

来自「优龙2410linux2.6.8内核源代码」· C语言 代码 · 共 1,701 行 · 第 1/4 页

{
	// patch for SigmaTel
	ac97->build_ops = &patch_sigmatel_stac9700_ops;
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x0000);	/* is this correct? --jk */
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0002);
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
	return 0;
}

int patch_sigmatel_stac9756(ac97_t * ac97)
{
	// patch for SigmaTel
	ac97->build_ops = &patch_sigmatel_stac9700_ops;
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC1, 0xabba);
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_CIC2, 0x0000);	/* is this correct? --jk */
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS1, 0xabba);
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_BIAS2, 0x0002);
	snd_ac97_write_cache(ac97, AC97_SIGMATEL_MULTICHN, 0x0000);
	return 0;
}

static int snd_ac97_stac9758_output_jack_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	static char *texts[5] = { "Input/Disabled", "Front Output",
		"Rear Output", "Center/LFE Output", "Mixer Output" };

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 5;
	if (uinfo->value.enumerated.item > 4)
		uinfo->value.enumerated.item = 4;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_ac97_stac9758_output_jack_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
{
	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
	int shift = kcontrol->private_value;
	unsigned short val;

	val = ac97->regs[AC97_SIGMATEL_OUTSEL];
	if (!((val >> shift) & 4))
		ucontrol->value.enumerated.item[0] = 0;
	else
		ucontrol->value.enumerated.item[0] = 1 + ((val >> shift) & 3);
	return 0;
}

static int snd_ac97_stac9758_output_jack_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
	int shift = kcontrol->private_value;
	unsigned short val;

	if (ucontrol->value.enumerated.item[0] > 4)
		return -EINVAL;
	if (ucontrol->value.enumerated.item[0] == 0)
		val = 0;
	else
		val = 4 | (ucontrol->value.enumerated.item[0] - 1);
	return snd_ac97_update_bits(ac97, AC97_SIGMATEL_OUTSEL,
				    7 << shift, val << shift);
}

static int snd_ac97_stac9758_input_jack_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	static char *texts[7] = { "Mic2 Jack", "Mic1 Jack", "Line In Jack",
		"Front Jack", "Rear Jack", "Center/LFE Jack", "Mute" };

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 7;
	if (uinfo->value.enumerated.item > 6)
		uinfo->value.enumerated.item = 6;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_ac97_stac9758_input_jack_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
{
	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
	int shift = kcontrol->private_value;
	unsigned short val;

	val = ac97->regs[AC97_SIGMATEL_INSEL];
	ucontrol->value.enumerated.item[0] = (val >> shift) & 7;
	return 0;
}

static int snd_ac97_stac9758_input_jack_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
	int shift = kcontrol->private_value;

	return snd_ac97_update_bits(ac97, AC97_SIGMATEL_INSEL, 7 << shift,
				    ucontrol->value.enumerated.item[0] << shift);
}

static int snd_ac97_stac9758_phonesel_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	static char *texts[3] = { "None", "Front Jack", "Rear Jack" };

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 3;
	if (uinfo->value.enumerated.item > 2)
		uinfo->value.enumerated.item = 2;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_ac97_stac9758_phonesel_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t* ucontrol)
{
	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = ac97->regs[AC97_SIGMATEL_IOMISC] & 3;
	return 0;
}

static int snd_ac97_stac9758_phonesel_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ac97_t *ac97 = snd_kcontrol_chip(kcontrol);

	return snd_ac97_update_bits(ac97, AC97_SIGMATEL_IOMISC, 3,
				    ucontrol->value.enumerated.item[0]);
}

#define STAC9758_OUTPUT_JACK(xname, shift) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
	.info = snd_ac97_stac9758_output_jack_info, \
	.get = snd_ac97_stac9758_output_jack_get, \
	.put = snd_ac97_stac9758_output_jack_put, \
	.private_value = shift }
#define STAC9758_INPUT_JACK(xname, shift) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
	.info = snd_ac97_stac9758_input_jack_info, \
	.get = snd_ac97_stac9758_input_jack_get, \
	.put = snd_ac97_stac9758_input_jack_put, \
	.private_value = shift }
static const snd_kcontrol_new_t snd_ac97_sigmatel_stac9758_controls[] = {
	STAC9758_OUTPUT_JACK("Mic1 Jack", 1),
	STAC9758_OUTPUT_JACK("LineIn Jack", 4),
	STAC9758_OUTPUT_JACK("Front Jack", 7),
	STAC9758_OUTPUT_JACK("Rear Jack", 10),
	STAC9758_OUTPUT_JACK("Center/LFE Jack", 13),
	STAC9758_INPUT_JACK("Mic Input Source", 0),
	STAC9758_INPUT_JACK("Line Input Source", 8),
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Headphone Amp",
		.info = snd_ac97_stac9758_phonesel_info,
		.get = snd_ac97_stac9758_phonesel_get,
		.put = snd_ac97_stac9758_phonesel_put
	},
	AC97_SINGLE("Exchange Center/LFE", AC97_SIGMATEL_IOMISC, 4, 1, 0),
	AC97_SINGLE("Headphone +3dB Boost", AC97_SIGMATEL_IOMISC, 8, 1, 0)
};

static int patch_sigmatel_stac9758_specific(ac97_t *ac97)
{
	int err;

	err = patch_sigmatel_stac97xx_specific(ac97);
	if (err < 0)
		return err;
	err = patch_build_controls(ac97, snd_ac97_sigmatel_stac9758_controls,
				   ARRAY_SIZE(snd_ac97_sigmatel_stac9758_controls));
	if (err < 0)
		return err;
	return 0;
}

static struct snd_ac97_build_ops patch_sigmatel_stac9758_ops = {
	.build_3d	= patch_sigmatel_stac9700_3d,
	.build_specific	= patch_sigmatel_stac9758_specific
};

int patch_sigmatel_stac9758(ac97_t * ac97)
{
	static unsigned short regs[4] = {
		AC97_SIGMATEL_OUTSEL,
		AC97_SIGMATEL_IOMISC,
		AC97_SIGMATEL_INSEL,
		AC97_SIGMATEL_VARIOUS
	};
	static unsigned short def_regs[4] = {
		/* OUTSEL */ 0xd794,
		/* IOMISC */ 0x2001,
		/* INSEL */ 0x0201,
		/* VARIOUS */ 0x0040
	};
	static unsigned short m675_regs[4] = {
		/* OUTSEL */ 0x9040,
		/* IOMISC */ 0x2102,
		/* INSEL */ 0x0203,
		/* VARIOUS */ 0x0041
	};
	unsigned short *pregs = def_regs;
	int i;

	/* Gateway M675 notebook */
	if (ac97->pci && 
	    ac97->subsystem_vendor == 0x107b &&
	    ac97->subsystem_device == 0x0601)
	    	pregs = m675_regs;

	// patch for SigmaTel
	ac97->build_ops = &patch_sigmatel_stac9758_ops;
	for (i = 0; i < 4; i++)
		snd_ac97_write_cache(ac97, regs[i], pregs[i]);

	ac97->flags |= AC97_STEREO_MUTES;
	return 0;
}

/*
 * Cirrus Logic CS42xx codecs
 */
static const snd_kcontrol_new_t snd_ac97_cirrus_controls_spdif[2] = {
	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), AC97_CSR_SPDIF, 15, 1, 0),
	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA", AC97_CSR_ACMODE, 0, 3, 0)
};

static int patch_cirrus_build_spdif(ac97_t * ac97)
{
	int err;

	if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
		return err;
	if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[0], 1)) < 0)
		return err;
	switch (ac97->id & AC97_ID_CS_MASK) {
	case AC97_ID_CS4205:
		if ((err = patch_build_controls(ac97, &snd_ac97_cirrus_controls_spdif[1], 1)) < 0)
			return err;
		break;
	}
	/* set default PCM S/PDIF params */
	/* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
	snd_ac97_write_cache(ac97, AC97_CSR_SPDIF, 0x0a20);
	return 0;
}

static struct snd_ac97_build_ops patch_cirrus_ops = {
	.build_spdif = patch_cirrus_build_spdif
};

int patch_cirrus_spdif(ac97_t * ac97)
{
	/* Basically, the cs4201/cs4205/cs4297a has non-standard sp/dif registers.
	   WHY CAN'T ANYONE FOLLOW THE BLOODY SPEC?  *sigh*
	   - sp/dif EA ID is not set, but sp/dif is always present.
	   - enable/disable is spdif register bit 15.
	   - sp/dif control register is 0x68.  differs from AC97:
	   - valid is bit 14 (vs 15)
	   - no DRS
	   - only 44.1/48k [00 = 48, 01=44,1] (AC97 is 00=44.1, 10=48)
	   - sp/dif ssource select is in 0x5e bits 0,1.
	*/

	ac97->build_ops = &patch_cirrus_ops;
	ac97->flags |= AC97_CS_SPDIF; 
	ac97->rates[AC97_RATES_SPDIF] &= ~SNDRV_PCM_RATE_32000;
        ac97->ext_id |= AC97_EI_SPDIF;	/* force the detection of spdif */
	snd_ac97_write_cache(ac97, AC97_CSR_ACMODE, 0x0080);
	return 0;
}

int patch_cirrus_cs4299(ac97_t * ac97)
{
	/* force the detection of PC Beep */
	ac97->flags |= AC97_HAS_PC_BEEP;
	
	return patch_cirrus_spdif(ac97);
}

/*
 * Conexant codecs
 */
static const snd_kcontrol_new_t snd_ac97_conexant_controls_spdif[1] = {
	AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), AC97_CXR_AUDIO_MISC, 3, 1, 0),
};

static int patch_conexant_build_spdif(ac97_t * ac97)
{
	int err;

	if ((err = patch_build_controls(ac97, &snd_ac97_controls_spdif[0], 3)) < 0)
		return err;
	if ((err = patch_build_controls(ac97, &snd_ac97_conexant_controls_spdif[0], 1)) < 0)
		return err;
	/* set default PCM S/PDIF params */
	/* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
	snd_ac97_write_cache(ac97, AC97_CXR_AUDIO_MISC,
			     snd_ac97_read(ac97, AC97_CXR_AUDIO_MISC) & ~(AC97_CXR_SPDIFEN|AC97_CXR_COPYRGT|AC97_CXR_SPDIF_MASK));
	return 0;
}

static struct snd_ac97_build_ops patch_conexant_ops = {
	.build_spdif = patch_conexant_build_spdif
};

int patch_conexant(ac97_t * ac97)
{
	ac97->build_ops = &patch_conexant_ops;
	ac97->flags |= AC97_CX_SPDIF;
        ac97->ext_id |= AC97_EI_SPDIF;	/* force the detection of spdif */
	return 0;
}

/*
 * Analog Device AD18xx, AD19xx codecs
 */
int patch_ad1819(ac97_t * ac97)
{
	unsigned short scfg;

	// patch for Analog Devices
	scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
	snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x7000); /* select all codecs */
	return 0;
}

static unsigned short patch_ad1881_unchained(ac97_t * ac97, int idx, unsigned short mask)
{
	unsigned short val;

	// test for unchained codec
	snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, mask);
	snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0000);	/* ID0C, ID1C, SDIE = off */
	val = snd_ac97_read(ac97, AC97_VENDOR_ID2);
	if ((val & 0xff40) != 0x5340)
		return 0;
	ac97->spec.ad18xx.unchained[idx] = mask;
	ac97->spec.ad18xx.id[idx] = val;
	ac97->spec.ad18xx.codec_cfg[idx] = 0x0000;
	return mask;
}

static int patch_ad1881_chained1(ac97_t * ac97, int idx, unsigned short codec_bits)
{
	static int cfg_bits[3] = { 1<<12, 1<<14, 1<<13 };
	unsigned short val;
	
	snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, cfg_bits[idx]);
	snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0004);	// SDIE
	val = snd_ac97_read(ac97, AC97_VENDOR_ID2);
	if ((val & 0xff40) != 0x5340)
		return 0;
	if (codec_bits)
		snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, codec_bits);
	ac97->spec.ad18xx.chained[idx] = cfg_bits[idx];
	ac97->spec.ad18xx.id[idx] = val;
	ac97->spec.ad18xx.codec_cfg[idx] = codec_bits ? codec_bits : 0x0004;
	return 1;
}

static void patch_ad1881_chained(ac97_t * ac97, int unchained_idx, int cidx1, int cidx2)
{
	// already detected?
	if (ac97->spec.ad18xx.unchained[cidx1] || ac97->spec.ad18xx.chained[cidx1])
		cidx1 = -1;
	if (ac97->spec.ad18xx.unchained[cidx2] || ac97->spec.ad18xx.chained[cidx2])
		cidx2 = -1;
	if (cidx1 < 0 && cidx2 < 0)
		return;
	// test for chained codecs
	snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
			     ac97->spec.ad18xx.unchained[unchained_idx]);
	snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0002);		// ID1C
	ac97->spec.ad18xx.codec_cfg[unchained_idx] = 0x0002;
	if (cidx1 >= 0) {
		if (patch_ad1881_chained1(ac97, cidx1, 0x0006))		// SDIE | ID1C
			patch_ad1881_chained1(ac97, cidx2, 0);
		else if (patch_ad1881_chained1(ac97, cidx2, 0x0006))	// SDIE | ID1C
			patch_ad1881_chained1(ac97, cidx1, 0);
	} else if (cidx2 >= 0) {
		patch_ad1881_chained1(ac97, cidx2, 0);
	}
}

int patch_ad1881(ac97_t * ac97)
{
	static const char cfg_idxs[3][2] = {
		{2, 1},
		{0, 2},
		{0, 1}
	};
	
	// patch for Analog Devices
	unsigned short codecs[3];
	unsigned short val;
	int idx, num;

	init_MUTEX(&ac97->spec.ad18xx.mutex);

	val = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
	snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, val);
	codecs[0] = patch_ad1881_unchained(ac97, 0, (1<<12));
	codecs[1] = patch_ad1881_unchained(ac97, 1, (1<<14));
	codecs[2] = patch_ad1881_unchained(ac97, 2, (1<<13));

	snd_runtime_check(codecs[0] | codecs[1] | codecs[2], goto __end);

	for (idx = 0; idx < 3; idx++)
		if (ac97->spec.ad18xx.unchained[idx])
			patch_ad1881_chained(ac97, idx, cfg_idxs[idx][0], cfg_idxs[idx][1]);

	if (ac97->spec.ad18xx.id[1]) {
		ac97->flags |= AC97_AD_MULTI;
		ac97->scaps |= AC97_SCAP_SURROUND_DAC;
	}
	if (ac97->spec.ad18xx.id[2]) {
		ac97->flags |= AC97_AD_MULTI;
		ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
	}

      __end:
	/* select all codecs */
	snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
	/* check if only one codec is present */
	for (idx = num = 0; idx < 3; idx++)
		if (ac97->spec.ad18xx.id[idx])