ca0106_mixer.c

linux 内核源代码

/*
 *  Copyright (c) 2004 James Courtier-Dutton <[e-mail]>
 *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
 *  Version: 0.0.18
 *
 *  FEATURES currently supported:
 *    See ca0106_main.c for features.
 * 
 *  Changelog:
 *    Support interrupts per period.
 *    Removed noise from Center/LFE channel when in Analog mode.
 *    Rename and remove mixer controls.
 *  0.0.6
 *    Use separate card based DMA buffer for periods table list.
 *  0.0.7
 *    Change remove and rename ctrls into lists.
 *  0.0.8
 *    Try to fix capture sources.
 *  0.0.9
 *    Fix AC3 output.
 *    Enable S32_LE format support.
 *  0.0.10
 *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
 *  0.0.11
 *    Add Model name recognition.
 *  0.0.12
 *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
 *    Remove redundent "voice" handling.
 *  0.0.13
 *    Single trigger call for multi channels.
 *  0.0.14
 *    Set limits based on what the sound card hardware can do.
 *    playback periods_min=2, periods_max=8
 *    capture hw constraints require period_size = n * 64 bytes.
 *    playback hw constraints require period_size = n * 64 bytes.
 *  0.0.15
 *    Separated ca0106.c into separate functional .c files.
 *  0.0.16
 *    Modified Copyright message.
 *  0.0.17
 *    Implement Mic and Line in Capture.
 *  0.0.18
 *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
 *
 *  This code was initally based on code from ALSA's emu10k1x.c which is:
 *  Copyright (c) by Francisco Moraes <[e-mail]>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */
#include <sound/driver.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/info.h>
#include <sound/tlv.h>
#include <asm/io.h>

#include "ca0106.h"

static const DECLARE_TLV_DB_SCALE(snd_ca0106_db_scale1, -5175, 25, 1);
static const DECLARE_TLV_DB_SCALE(snd_ca0106_db_scale2, -10350, 50, 1);

#define snd_ca0106_shared_spdif_info	snd_ctl_boolean_mono_info

static int snd_ca0106_shared_spdif_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = emu->spdif_enable;
	return 0;
}

static int snd_ca0106_shared_spdif_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;
	u32 mask;

	val = !!ucontrol->value.integer.value[0];
	change = (emu->spdif_enable != val);
	if (change) {
		emu->spdif_enable = val;
		if (val) {
			/* Digital */
			snd_ca0106_ptr_write(emu, SPDIF_SELECT1, 0, 0xf);
			snd_ca0106_ptr_write(emu, SPDIF_SELECT2, 0, 0x0b000000);
			snd_ca0106_ptr_write(emu, CAPTURE_CONTROL, 0,
				snd_ca0106_ptr_read(emu, CAPTURE_CONTROL, 0) & ~0x1000);
			mask = inl(emu->port + GPIO) & ~0x101;
			outl(mask, emu->port + GPIO);

		} else {
			/* Analog */
			snd_ca0106_ptr_write(emu, SPDIF_SELECT1, 0, 0xf);
			snd_ca0106_ptr_write(emu, SPDIF_SELECT2, 0, 0x000f0000);
			snd_ca0106_ptr_write(emu, CAPTURE_CONTROL, 0,
				snd_ca0106_ptr_read(emu, CAPTURE_CONTROL, 0) | 0x1000);
			mask = inl(emu->port + GPIO) | 0x101;
			outl(mask, emu->port + GPIO);
		}
	}
        return change;
}

static int snd_ca0106_capture_source_info(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_info *uinfo)
{
	static char *texts[6] = {
		"IEC958 out", "i2s mixer out", "IEC958 in", "i2s in", "AC97 in", "SRC out"
	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 6;
	if (uinfo->value.enumerated.item > 5)
                uinfo->value.enumerated.item = 5;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_ca0106_capture_source_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->capture_source;
	return 0;
}

static int snd_ca0106_capture_source_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;
	u32 mask;
	u32 source;

	val = ucontrol->value.enumerated.item[0] ;
	if (val >= 6)
		return -EINVAL;
	change = (emu->capture_source != val);
	if (change) {
		emu->capture_source = val;
		source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
		mask = snd_ca0106_ptr_read(emu, CAPTURE_SOURCE, 0) & 0xffff;
		snd_ca0106_ptr_write(emu, CAPTURE_SOURCE, 0, source | mask);
	}
        return change;
}

static int snd_ca0106_i2c_capture_source_info(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_info *uinfo)
{
	static char *texts[6] = {
		"Phone", "Mic", "Line in", "Aux"
	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 4;
	if (uinfo->value.enumerated.item > 3)
                uinfo->value.enumerated.item = 3;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_ca0106_i2c_capture_source_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->i2c_capture_source;
	return 0;
}

static int snd_ca0106_i2c_capture_source_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int source_id;
	unsigned int ngain, ogain;
	int change = 0;
	u32 source;
	/* If the capture source has changed,
	 * update the capture volume from the cached value
	 * for the particular source.
	 */
	source_id = ucontrol->value.enumerated.item[0] ;
	if (source_id >= 4)
		return -EINVAL;
	change = (emu->i2c_capture_source != source_id);
	if (change) {
		snd_ca0106_i2c_write(emu, ADC_MUX, 0); /* Mute input */
		ngain = emu->i2c_capture_volume[source_id][0]; /* Left */
		ogain = emu->i2c_capture_volume[emu->i2c_capture_source][0]; /* Left */
		if (ngain != ogain)
			snd_ca0106_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff));
		ngain = emu->i2c_capture_volume[source_id][1]; /* Left */
		ogain = emu->i2c_capture_volume[emu->i2c_capture_source][1]; /* Left */
		if (ngain != ogain)
			snd_ca0106_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));
		source = 1 << source_id;
		snd_ca0106_i2c_write(emu, ADC_MUX, source); /* Set source */
		emu->i2c_capture_source = source_id;
	}
        return change;
}

static int snd_ca0106_capture_line_in_side_out_info(struct snd_kcontrol *kcontrol,
					       struct snd_ctl_elem_info *uinfo)
{
	static char *texts[2] = { "Side out", "Line in" };

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

static int snd_ca0106_capture_mic_line_in_info(struct snd_kcontrol *kcontrol,
					       struct snd_ctl_elem_info *uinfo)
{
	static char *texts[2] = { "Line in", "Mic in" };

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

static int snd_ca0106_capture_mic_line_in_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->capture_mic_line_in;
	return 0;
}

static int snd_ca0106_capture_mic_line_in_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;
	u32 tmp;

	val = ucontrol->value.enumerated.item[0] ;
	if (val > 1)
		return -EINVAL;
	change = (emu->capture_mic_line_in != val);
	if (change) {
		emu->capture_mic_line_in = val;
		if (val) {
			//snd_ca0106_i2c_write(emu, ADC_MUX, 0); /* Mute input */
			tmp = inl(emu->port+GPIO) & ~0x400;
			tmp = tmp | 0x400;
			outl(tmp, emu->port+GPIO);
			//snd_ca0106_i2c_write(emu, ADC_MUX, ADC_MUX_MIC);
		} else {
			//snd_ca0106_i2c_write(emu, ADC_MUX, 0); /* Mute input */
			tmp = inl(emu->port+GPIO) & ~0x400;
			outl(tmp, emu->port+GPIO);
			//snd_ca0106_i2c_write(emu, ADC_MUX, ADC_MUX_LINEIN);
		}
	}
        return change;
}

static struct snd_kcontrol_new snd_ca0106_capture_mic_line_in __devinitdata =
{
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Shared Mic/Line in Capture Switch",
	.info =		snd_ca0106_capture_mic_line_in_info,
	.get =		snd_ca0106_capture_mic_line_in_get,
	.put =		snd_ca0106_capture_mic_line_in_put
};

static struct snd_kcontrol_new snd_ca0106_capture_line_in_side_out __devinitdata =
{
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Shared Line in/Side out Capture Switch",
	.info =		snd_ca0106_capture_line_in_side_out_info,
	.get =		snd_ca0106_capture_mic_line_in_get,
	.put =		snd_ca0106_capture_mic_line_in_put
};


static int snd_ca0106_spdif_info(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int snd_ca0106_spdif_get(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

	ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
	ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
	ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
	ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
        return 0;
}

static int snd_ca0106_spdif_get_mask(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = 0xff;
	ucontrol->value.iec958.status[1] = 0xff;
	ucontrol->value.iec958.status[2] = 0xff;
	ucontrol->value.iec958.status[3] = 0xff;
        return 0;
}

static int snd_ca0106_spdif_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
	int change;
	unsigned int val;

	val = (ucontrol->value.iec958.status[0] << 0) |
	      (ucontrol->value.iec958.status[1] << 8) |
	      (ucontrol->value.iec958.status[2] << 16) |
	      (ucontrol->value.iec958.status[3] << 24);
	change = val != emu->spdif_bits[idx];
	if (change) {
		snd_ca0106_ptr_write(emu, SPCS0 + idx, 0, val);