sb_mixer.c

linux2.6.16版本

		nval = SB_DSP_MIXS_MIC;
	}
	nval <<= 1;
	spin_lock_irqsave(&sb->mixer_lock, flags);
	oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
	nval |= oval & ~0x06;
	change = nval != oval;
	if (change)
		snd_sbmixer_write(sb, SB_DSP_CAPTURE_SOURCE, nval);
	spin_unlock_irqrestore(&sb->mixer_lock, flags);
	return change;
}

/*
 * SB16 input switch
 */

static int snd_sb16mixer_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 4;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_sb16mixer_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg1 = kcontrol->private_value & 0xff;
	int reg2 = (kcontrol->private_value >> 8) & 0xff;
	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
	unsigned char val1, val2;

	spin_lock_irqsave(&sb->mixer_lock, flags);
	val1 = snd_sbmixer_read(sb, reg1);
	val2 = snd_sbmixer_read(sb, reg2);
	spin_unlock_irqrestore(&sb->mixer_lock, flags);
	ucontrol->value.integer.value[0] = (val1 >> left_shift) & 0x01;
	ucontrol->value.integer.value[1] = (val2 >> left_shift) & 0x01;
	ucontrol->value.integer.value[2] = (val1 >> right_shift) & 0x01;
	ucontrol->value.integer.value[3] = (val2 >> right_shift) & 0x01;
	return 0;
}                                                                                                                   

static int snd_sb16mixer_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg1 = kcontrol->private_value & 0xff;
	int reg2 = (kcontrol->private_value >> 8) & 0xff;
	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
	int change;
	unsigned char val1, val2, oval1, oval2;

	spin_lock_irqsave(&sb->mixer_lock, flags);
	oval1 = snd_sbmixer_read(sb, reg1);
	oval2 = snd_sbmixer_read(sb, reg2);
	val1 = oval1 & ~((1 << left_shift) | (1 << right_shift));
	val2 = oval2 & ~((1 << left_shift) | (1 << right_shift));
	val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
	val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
	val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
	val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
	change = val1 != oval1 || val2 != oval2;
	if (change) {
		snd_sbmixer_write(sb, reg1, val1);
		snd_sbmixer_write(sb, reg2, val2);
	}
	spin_unlock_irqrestore(&sb->mixer_lock, flags);
	return change;
}


/*
 */
/*
 */
int snd_sbmixer_add_ctl(struct snd_sb *chip, const char *name, int index, int type, unsigned long value)
{
	static struct snd_kcontrol_new newctls[] = {
		[SB_MIX_SINGLE] = {
			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
			.info = snd_sbmixer_info_single,
			.get = snd_sbmixer_get_single,
			.put = snd_sbmixer_put_single,
		},
		[SB_MIX_DOUBLE] = {
			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
			.info = snd_sbmixer_info_double,
			.get = snd_sbmixer_get_double,
			.put = snd_sbmixer_put_double,
		},
		[SB_MIX_INPUT_SW] = {
			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
			.info = snd_sb16mixer_info_input_sw,
			.get = snd_sb16mixer_get_input_sw,
			.put = snd_sb16mixer_put_input_sw,
		},
		[SB_MIX_CAPTURE_PRO] = {
			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
			.info = snd_sb8mixer_info_mux,
			.get = snd_sb8mixer_get_mux,
			.put = snd_sb8mixer_put_mux,
		},
		[SB_MIX_CAPTURE_DT019X] = {
			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
			.info = snd_dt019x_input_sw_info,
			.get = snd_dt019x_input_sw_get,
			.put = snd_dt019x_input_sw_put,
		},
	};
	struct snd_kcontrol *ctl;
	int err;

	ctl = snd_ctl_new1(&newctls[type], chip);
	if (! ctl)
		return -ENOMEM;
	strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
	ctl->id.index = index;
	ctl->private_value = value;
	if ((err = snd_ctl_add(chip->card, ctl)) < 0) {
		snd_ctl_free_one(ctl);
		return err;
	}
	return 0;
}

/*
 * SB 2.0 specific mixer elements
 */

static struct sbmix_elem snd_sb20_ctl_master_play_vol =
	SB_SINGLE("Master Playback Volume", SB_DSP20_MASTER_DEV, 1, 7);
static struct sbmix_elem snd_sb20_ctl_pcm_play_vol =
	SB_SINGLE("PCM Playback Volume", SB_DSP20_PCM_DEV, 1, 3);
static struct sbmix_elem snd_sb20_ctl_synth_play_vol =
	SB_SINGLE("Synth Playback Volume", SB_DSP20_FM_DEV, 1, 7);
static struct sbmix_elem snd_sb20_ctl_cd_play_vol =
	SB_SINGLE("CD Playback Volume", SB_DSP20_CD_DEV, 1, 7);

static struct sbmix_elem *snd_sb20_controls[] = {
	&snd_sb20_ctl_master_play_vol,
	&snd_sb20_ctl_pcm_play_vol,
	&snd_sb20_ctl_synth_play_vol,
	&snd_sb20_ctl_cd_play_vol
};

static unsigned char snd_sb20_init_values[][2] = {
	{ SB_DSP20_MASTER_DEV, 0 },
	{ SB_DSP20_FM_DEV, 0 },
};

/*
 * SB Pro specific mixer elements
 */
static struct sbmix_elem snd_sbpro_ctl_master_play_vol =
	SB_DOUBLE("Master Playback Volume", SB_DSP_MASTER_DEV, SB_DSP_MASTER_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_pcm_play_vol =
	SB_DOUBLE("PCM Playback Volume", SB_DSP_PCM_DEV, SB_DSP_PCM_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_pcm_play_filter =
	SB_SINGLE("PCM Playback Filter", SB_DSP_PLAYBACK_FILT, 5, 1);
static struct sbmix_elem snd_sbpro_ctl_synth_play_vol =
	SB_DOUBLE("Synth Playback Volume", SB_DSP_FM_DEV, SB_DSP_FM_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_cd_play_vol =
	SB_DOUBLE("CD Playback Volume", SB_DSP_CD_DEV, SB_DSP_CD_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_line_play_vol =
	SB_DOUBLE("Line Playback Volume", SB_DSP_LINE_DEV, SB_DSP_LINE_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_mic_play_vol =
	SB_SINGLE("Mic Playback Volume", SB_DSP_MIC_DEV, 1, 3);
static struct sbmix_elem snd_sbpro_ctl_capture_source =
	{
		.name = "Capture Source",
		.type = SB_MIX_CAPTURE_PRO
	};
static struct sbmix_elem snd_sbpro_ctl_capture_filter =
	SB_SINGLE("Capture Filter", SB_DSP_CAPTURE_FILT, 5, 1);
static struct sbmix_elem snd_sbpro_ctl_capture_low_filter =
	SB_SINGLE("Capture Low-Pass Filter", SB_DSP_CAPTURE_FILT, 3, 1);

static struct sbmix_elem *snd_sbpro_controls[] = {
	&snd_sbpro_ctl_master_play_vol,
	&snd_sbpro_ctl_pcm_play_vol,
	&snd_sbpro_ctl_pcm_play_filter,
	&snd_sbpro_ctl_synth_play_vol,
	&snd_sbpro_ctl_cd_play_vol,
	&snd_sbpro_ctl_line_play_vol,
	&snd_sbpro_ctl_mic_play_vol,
	&snd_sbpro_ctl_capture_source,
	&snd_sbpro_ctl_capture_filter,
	&snd_sbpro_ctl_capture_low_filter
};

static unsigned char snd_sbpro_init_values[][2] = {
	{ SB_DSP_MASTER_DEV, 0 },
	{ SB_DSP_PCM_DEV, 0 },
	{ SB_DSP_FM_DEV, 0 },
};

/*
 * SB16 specific mixer elements
 */
static struct sbmix_elem snd_sb16_ctl_master_play_vol =
	SB_DOUBLE("Master Playback Volume", SB_DSP4_MASTER_DEV, (SB_DSP4_MASTER_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_3d_enhance_switch =
	SB_SINGLE("3D Enhancement Switch", SB_DSP4_3DSE, 0, 1);
static struct sbmix_elem snd_sb16_ctl_tone_bass =
	SB_DOUBLE("Tone Control - Bass", SB_DSP4_BASS_DEV, (SB_DSP4_BASS_DEV + 1), 4, 4, 15);
static struct sbmix_elem snd_sb16_ctl_tone_treble =
	SB_DOUBLE("Tone Control - Treble", SB_DSP4_TREBLE_DEV, (SB_DSP4_TREBLE_DEV + 1), 4, 4, 15);
static struct sbmix_elem snd_sb16_ctl_pcm_play_vol =
	SB_DOUBLE("PCM Playback Volume", SB_DSP4_PCM_DEV, (SB_DSP4_PCM_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_synth_capture_route =
	SB16_INPUT_SW("Synth Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 6, 5);
static struct sbmix_elem snd_sb16_ctl_synth_play_vol =
	SB_DOUBLE("Synth Playback Volume", SB_DSP4_SYNTH_DEV, (SB_DSP4_SYNTH_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_cd_capture_route =
	SB16_INPUT_SW("CD Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 2, 1);
static struct sbmix_elem snd_sb16_ctl_cd_play_switch =
	SB_DOUBLE("CD Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 2, 1, 1);
static struct sbmix_elem snd_sb16_ctl_cd_play_vol =
	SB_DOUBLE("CD Playback Volume", SB_DSP4_CD_DEV, (SB_DSP4_CD_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_line_capture_route =
	SB16_INPUT_SW("Line Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 4, 3);
static struct sbmix_elem snd_sb16_ctl_line_play_switch =
	SB_DOUBLE("Line Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 4, 3, 1);
static struct sbmix_elem snd_sb16_ctl_line_play_vol =
	SB_DOUBLE("Line Playback Volume", SB_DSP4_LINE_DEV, (SB_DSP4_LINE_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_mic_capture_route =
	SB16_INPUT_SW("Mic Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 0, 0);
static struct sbmix_elem snd_sb16_ctl_mic_play_switch =
	SB_SINGLE("Mic Playback Switch", SB_DSP4_OUTPUT_SW, 0, 1);
static struct sbmix_elem snd_sb16_ctl_mic_play_vol =
	SB_SINGLE("Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31);
static struct sbmix_elem snd_sb16_ctl_pc_speaker_vol =
	SB_SINGLE("PC Speaker Volume", SB_DSP4_SPEAKER_DEV, 6, 3);
static struct sbmix_elem snd_sb16_ctl_capture_vol =
	SB_DOUBLE("Capture Volume", SB_DSP4_IGAIN_DEV, (SB_DSP4_IGAIN_DEV + 1), 6, 6, 3);
static struct sbmix_elem snd_sb16_ctl_play_vol =
	SB_DOUBLE("Playback Volume", SB_DSP4_OGAIN_DEV, (SB_DSP4_OGAIN_DEV + 1), 6, 6, 3);
static struct sbmix_elem snd_sb16_ctl_auto_mic_gain =
	SB_SINGLE("Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1);

static struct sbmix_elem *snd_sb16_controls[] = {
	&snd_sb16_ctl_master_play_vol,
	&snd_sb16_ctl_3d_enhance_switch,
	&snd_sb16_ctl_tone_bass,
	&snd_sb16_ctl_tone_treble,
	&snd_sb16_ctl_pcm_play_vol,
	&snd_sb16_ctl_synth_capture_route,
	&snd_sb16_ctl_synth_play_vol,
	&snd_sb16_ctl_cd_capture_route,
	&snd_sb16_ctl_cd_play_switch,
	&snd_sb16_ctl_cd_play_vol,
	&snd_sb16_ctl_line_capture_route,
	&snd_sb16_ctl_line_play_switch,
	&snd_sb16_ctl_line_play_vol,
	&snd_sb16_ctl_mic_capture_route,
	&snd_sb16_ctl_mic_play_switch,
	&snd_sb16_ctl_mic_play_vol,
	&snd_sb16_ctl_pc_speaker_vol,
	&snd_sb16_ctl_capture_vol,
	&snd_sb16_ctl_play_vol,
	&snd_sb16_ctl_auto_mic_gain
};

static unsigned char snd_sb16_init_values[][2] = {
	{ SB_DSP4_MASTER_DEV + 0, 0 },
	{ SB_DSP4_MASTER_DEV + 1, 0 },
	{ SB_DSP4_PCM_DEV + 0, 0 },
	{ SB_DSP4_PCM_DEV + 1, 0 },
	{ SB_DSP4_SYNTH_DEV + 0, 0 },
	{ SB_DSP4_SYNTH_DEV + 1, 0 },
	{ SB_DSP4_INPUT_LEFT, 0 },
	{ SB_DSP4_INPUT_RIGHT, 0 },
	{ SB_DSP4_OUTPUT_SW, 0 },
	{ SB_DSP4_SPEAKER_DEV, 0 },
};

/*
 * DT019x specific mixer elements
 */
static struct sbmix_elem snd_dt019x_ctl_master_play_vol =
	SB_DOUBLE("Master Playback Volume", SB_DT019X_MASTER_DEV, SB_DT019X_MASTER_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_pcm_play_vol =
	SB_DOUBLE("PCM Playback Volume", SB_DT019X_PCM_DEV, SB_DT019X_PCM_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_synth_play_vol =
	SB_DOUBLE("Synth Playback Volume", SB_DT019X_SYNTH_DEV, SB_DT019X_SYNTH_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_cd_play_vol =
	SB_DOUBLE("CD Playback Volume", SB_DT019X_CD_DEV, SB_DT019X_CD_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_mic_play_vol =
	SB_SINGLE("Mic Playback Volume", SB_DT019X_MIC_DEV, 4, 7);
static struct sbmix_elem snd_dt019x_ctl_pc_speaker_vol =
	SB_SINGLE("PC Speaker Volume", SB_DT019X_SPKR_DEV, 0,  7);
static struct sbmix_elem snd_dt019x_ctl_line_play_vol =
	SB_DOUBLE("Line Playback Volume", SB_DT019X_LINE_DEV, SB_DT019X_LINE_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_pcm_play_switch =
	SB_DOUBLE("PCM Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 2,1, 1);
static struct sbmix_elem snd_dt019x_ctl_synth_play_switch =
	SB_DOUBLE("Synth Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 4,3, 1);
static struct sbmix_elem snd_dt019x_ctl_capture_source =
	{
		.name = "Capture Source",
		.type = SB_MIX_CAPTURE_DT019X
	};

static struct sbmix_elem *snd_dt019x_controls[] = {
	&snd_dt019x_ctl_master_play_vol,
	&snd_dt019x_ctl_pcm_play_vol,
	&snd_dt019x_ctl_synth_play_vol,
	&snd_dt019x_ctl_cd_play_vol,
	&snd_dt019x_ctl_mic_play_vol,
	&snd_dt019x_ctl_pc_speaker_vol,
	&snd_dt019x_ctl_line_play_vol,
	&snd_sb16_ctl_mic_play_switch,
	&snd_sb16_ctl_cd_play_switch,
	&snd_sb16_ctl_line_play_switch,
	&snd_dt019x_ctl_pcm_play_switch,
	&snd_dt019x_ctl_synth_play_switch,
	&snd_dt019x_ctl_capture_source
};

static unsigned char snd_dt019x_init_values[][2] = {
        { SB_DT019X_MASTER_DEV, 0 },
        { SB_DT019X_PCM_DEV, 0 },
        { SB_DT019X_SYNTH_DEV, 0 },
        { SB_DT019X_CD_DEV, 0 },
        { SB_DT019X_MIC_DEV, 0 },	/* Includes PC-speaker in high nibble */