path: root/sound/pci/lola/lola_mixer.c

/*
 *  Support for Digigram Lola PCI-e boards
 *
 *  Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
 *
 *  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 <linux/kernel.h>
#include <linux/init.h>
#include <linux/vmalloc.h>
#include <linux/io.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/tlv.h>
#include "lola.h"

static int __devinit lola_init_pin(struct lola *chip, struct lola_pin *pin,
				   int dir, int nid)
{
	unsigned int val;
	int err;

	pin->nid = nid;
	err = lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
	if (err < 0) {
		printk(KERN_ERR SFX "Can't read wcaps for 0x%x\n", nid);
		return err;
	}
	val &= 0x00f00fff; /* test TYPE and bits 0..11 */
	if (val == 0x00400200)    /* Type = 4, Digital = 1 */
		pin->is_analog = false;
	else if (val == 0x0040000a && dir == CAPT) /* Dig=0, InAmp/ovrd */
		pin->is_analog = true;
	else if (val == 0x0040000c && dir == PLAY) /* Dig=0, OutAmp/ovrd */
		pin->is_analog = true;
	else {
		printk(KERN_ERR SFX "Invalid wcaps 0x%x for 0x%x\n", val, nid);
		return -EINVAL;
	}

	/* analog parameters only following, so continue in case of Digital pin
	 */
	if (!pin->is_analog)
		return 0;

	if (dir == PLAY)
		err = lola_read_param(chip, nid, LOLA_PAR_AMP_OUT_CAP, &val);
	else
		err = lola_read_param(chip, nid, LOLA_PAR_AMP_IN_CAP, &val);
	if (err < 0) {
		printk(KERN_ERR SFX "Can't read AMP-caps for 0x%x\n", nid);
		return err;
	}

	pin->amp_mute = LOLA_AMP_MUTE_CAPABLE(val);
	pin->amp_step_size = LOLA_AMP_STEP_SIZE(val);
	pin->amp_num_steps = LOLA_AMP_NUM_STEPS(val);
	if (pin->amp_num_steps) {
		/* zero as mute state */
		pin->amp_num_steps++;
		pin->amp_step_size++;
	}
	pin->amp_offset = LOLA_AMP_OFFSET(val);

	err = lola_codec_read(chip, nid, LOLA_VERB_GET_MAX_LEVEL, 0, 0, &val,
			      NULL);
	if (err < 0) {
		printk(KERN_ERR SFX "Can't get MAX_LEVEL 0x%x\n", nid);
		return err;
	}
	pin->max_level = val & 0x3ff;   /* 10 bits */

	pin->config_default_reg = 0;
	pin->fixed_gain_list_len = 0;
	pin->cur_gain_step = 0;

	return 0;
}

int __devinit lola_init_pins(struct lola *chip, int dir, int *nidp)
{
	int i, err, nid;
	nid = *nidp;
	for (i = 0; i < chip->pin[dir].num_pins; i++, nid++) {
		err = lola_init_pin(chip, &chip->pin[dir].pins[i], dir, nid);
		if (err < 0)
			return err;
		if (chip->pin[dir].pins[i].is_analog)
			chip->pin[dir].num_analog_pins++;
	}
	*nidp = nid;
	return 0;
}

void lola_free_mixer(struct lola *chip)
{
	if (chip->mixer.array_saved)
		vfree(chip->mixer.array_saved);
}

int __devinit lola_init_mixer_widget(struct lola *chip, int nid)
{
	unsigned int val;
	int err;

	err = lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
	if (err < 0) {
		printk(KERN_ERR SFX "Can't read wcaps for 0x%x\n", nid);
		return err;
	}

	if ((val & 0xfff00000) != 0x02f00000) { /* test SubType and Type */
		snd_printdd("No valid mixer widget\n");
		return 0;
	}

	chip->mixer.nid = nid;
	chip->mixer.caps = val;
	chip->mixer.array = (struct lola_mixer_array __iomem *)
		(chip->bar[BAR1].remap_addr + LOLA_BAR1_SOURCE_GAIN_ENABLE);

	/* reserve memory to copy mixer data for sleep mode transitions */
	chip->mixer.array_saved = vmalloc(sizeof(struct lola_mixer_array));

	/* mixer matrix sources are physical input data and play streams */
	chip->mixer.src_stream_outs = chip->pcm[PLAY].num_streams;
	chip->mixer.src_phys_ins = chip