Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / sound / pci / lola / lola_mixer.c
diff --git a/kernel/sound/pci/lola/lola_mixer.c b/kernel/sound/pci/lola/lola_mixer.c
new file mode 100644 (file)
index 0000000..e7fe15d
--- /dev/null
@@ -0,0 +1,896 @@
+/*
+ *  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 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) {
+               dev_err(chip->card->dev, "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 {
+               dev_err(chip->card->dev, "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) {
+               dev_err(chip->card->dev, "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) {
+               dev_err(chip->card->dev, "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 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)
+{
+       vfree(chip->mixer.array_saved);
+}
+
+int 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) {
+               dev_err(chip->card->dev, "Can't read wcaps for 0x%x\n", nid);
+               return err;
+       }
+
+       if ((val & 0xfff00000) != 0x02f00000) { /* test SubType and Type */
+               dev_dbg(chip->card->dev, "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->pin[CAPT].num_pins;
+
+       /* mixer matrix destinations are record streams and physical output */
+       chip->mixer.dest_stream_ins = chip->pcm[CAPT].num_streams;
+       chip->mixer.dest_phys_outs = chip->pin[PLAY].num_pins;
+
+       /* mixer matrix may have unused areas between PhysIn and
+        * Play or Record and PhysOut zones
+        */
+       chip->mixer.src_stream_out_ofs = chip->mixer.src_phys_ins +
+               LOLA_MIXER_SRC_INPUT_PLAY_SEPARATION(val);
+       chip->mixer.dest_phys_out_ofs = chip->mixer.dest_stream_ins +
+               LOLA_MIXER_DEST_REC_OUTPUT_SEPARATION(val);
+
+       /* example : MixerMatrix of LoLa881 (LoLa16161 uses unused zones)
+        * +-+  0-------8------16-------8------16
+        * | |  |       |       |       |       |
+        * |s|  | INPUT |       | INPUT |       |
+        * | |->|  ->   |unused |  ->   |unused |
+        * |r|  |CAPTURE|       | OUTPUT|       |
+        * | |  |  MIX  |       |  MIX  |       |
+        * |c|  8--------------------------------
+        * | |  |       |       |       |       |
+        * | |  |       |       |       |       |
+        * |g|  |unused |unused |unused |unused |
+        * | |  |       |       |       |       |
+        * |a|  |       |       |       |       |
+        * | |  16-------------------------------
+        * |i|  |       |       |       |       |
+        * | |  | PLAYBK|       | PLAYBK|       |
+        * |n|->|  ->   |unused |  ->   |unused |
+        * | |  |CAPTURE|       | OUTPUT|       |
+        * | |  |  MIX  |       |  MIX  |       |
+        * |a|  8--------------------------------
+        * |r|  |       |       |       |       |
+        * |r|  |       |       |       |       |
+        * |a|  |unused |unused |unused |unused |
+        * |y|  |       |       |       |       |
+        * | |  |       |       |       |       |
+        * +++  16--|---------------|------------
+        *      +---V---------------V-----------+
+        *      |  dest_mix_gain_enable array   |
+        *      +-------------------------------+
+        */
+       /* example : MixerMatrix of LoLa280
+        * +-+  0-------8-2
+        * | |  |       | |
+        * |s|  | INPUT | |     INPUT
+        * |r|->|  ->   | |      ->
+        * |c|  |CAPTURE| | <-  OUTPUT
+        * | |  |  MIX  | |      MIX
+        * |g|  8----------
+        * |a|  |       | |
+        * |i|  | PLAYBK| |     PLAYBACK
+        * |n|->|  ->   | |      ->
+        * | |  |CAPTURE| | <-  OUTPUT
+        * |a|  |  MIX  | |      MIX
+        * |r|  8---|----|-
+        * |r|  +---V----V-------------------+
+        * |a|  | dest_mix_gain_enable array |
+        * |y|  +----------------------------+
+        */
+       if (chip->mixer.src_stream_out_ofs > MAX_AUDIO_INOUT_COUNT ||
+           chip->mixer.dest_phys_out_ofs > MAX_STREAM_IN_COUNT) {
+               dev_err(chip->card->dev, "Invalid mixer widget size\n");
+               return -EINVAL;
+       }
+
+       chip->mixer.src_mask = ((1U << chip->mixer.src_phys_ins) - 1) |
+               (((1U << chip->mixer.src_stream_outs) - 1)
+                << chip->mixer.src_stream_out_ofs);
+       chip->mixer.dest_mask = ((1U << chip->mixer.dest_stream_ins) - 1) |
+               (((1U << chip->mixer.dest_phys_outs) - 1)
+                << chip->mixer.dest_phys_out_ofs);
+
+       dev_dbg(chip->card->dev, "Mixer src_mask=%x, dest_mask=%x\n",
+                   chip->mixer.src_mask, chip->mixer.dest_mask);
+
+       return 0;
+}
+
+static int lola_mixer_set_src_gain(struct lola *chip, unsigned int id,
+                                  unsigned short gain, bool on)
+{
+       unsigned int oldval, val;
+
+       if (!(chip->mixer.src_mask & (1 << id)))
+               return -EINVAL;
+       oldval = val = readl(&chip->mixer.array->src_gain_enable);
+       if (on)
+               val |= (1 << id);
+       else
+               val &= ~(1 << id);
+       /* test if values unchanged */
+       if ((val == oldval) &&
+           (gain == readw(&chip->mixer.array->src_gain[id])))
+               return 0;
+
+       dev_dbg(chip->card->dev,
+               "lola_mixer_set_src_gain (id=%d, gain=%d) enable=%x\n",
+                       id, gain, val);
+       writew(gain, &chip->mixer.array->src_gain[id]);
+       writel(val, &chip->mixer.array->src_gain_enable);
+       lola_codec_flush(chip);
+       /* inform micro-controller about the new source gain */
+       return lola_codec_write(chip, chip->mixer.nid,
+                               LOLA_VERB_SET_SOURCE_GAIN, id, 0);
+}
+
+#if 0 /* not used */
+static int lola_mixer_set_src_gains(struct lola *chip, unsigned int mask,
+                                   unsigned short *gains)
+{
+       int i;
+
+       if ((chip->mixer.src_mask & mask) != mask)
+               return -EINVAL;
+       for (i = 0; i < LOLA_MIXER_DIM; i++) {
+               if (mask & (1 << i)) {
+                       writew(*gains, &chip->mixer.array->src_gain[i]);
+                       gains++;
+               }
+       }
+       writel(mask, &chip->mixer.array->src_gain_enable);
+       lola_codec_flush(chip);
+       if (chip->mixer.caps & LOLA_PEAK_METER_CAN_AGC_MASK) {
+               /* update for all srcs at once */
+               return lola_codec_write(chip, chip->mixer.nid,
+                                       LOLA_VERB_SET_SOURCE_GAIN, 0x80, 0);
+       }
+       /* update manually */
+       for (i = 0; i < LOLA_MIXER_DIM; i++) {
+               if (mask & (1 << i)) {
+                       lola_codec_write(chip, chip->mixer.nid,
+                                        LOLA_VERB_SET_SOURCE_GAIN, i, 0);
+               }
+       }
+       return 0;
+}
+#endif /* not used */
+
+static int lola_mixer_set_mapping_gain(struct lola *chip,
+                                      unsigned int src, unsigned int dest,
+                                      unsigned short gain, bool on)
+{
+       unsigned int val;
+
+       if (!(chip->mixer.src_mask & (1 << src)) ||
+           !(chip->mixer.dest_mask & (1 << dest)))
+               return -EINVAL;
+       if (on)
+               writew(gain, &chip->mixer.array->dest_mix_gain[dest][src]);
+       val = readl(&chip->mixer.array->dest_mix_gain_enable[dest]);
+       if (on)
+               val |= (1 << src);
+       else
+               val &= ~(1 << src);
+       writel(val, &chip->mixer.array->dest_mix_gain_enable[dest]);
+       lola_codec_flush(chip);
+       return lola_codec_write(chip, chip->mixer.nid, LOLA_VERB_SET_MIX_GAIN,
+                               src, dest);
+}
+
+#if 0 /* not used */
+static int lola_mixer_set_dest_gains(struct lola *chip, unsigned int id,
+                                    unsigned int mask, unsigned short *gains)
+{
+       int i;
+
+       if (!(chip->mixer.dest_mask & (1 << id)) ||
+           (chip->mixer.src_mask & mask) != mask)
+               return -EINVAL;
+       for (i = 0; i < LOLA_MIXER_DIM; i++) {
+               if (mask & (1 << i)) {
+                       writew(*gains, &chip->mixer.array->dest_mix_gain[id][i]);
+                       gains++;
+               }
+       }
+       writel(mask, &chip->mixer.array->dest_mix_gain_enable[id]);
+       lola_codec_flush(chip);
+       /* update for all dests at once */
+       return lola_codec_write(chip, chip->mixer.nid,
+                               LOLA_VERB_SET_DESTINATION_GAIN, id, 0);
+}
+#endif /* not used */
+
+/*
+ */
+
+static int set_analog_volume(struct lola *chip, int dir,
+                            unsigned int idx, unsigned int val,
+                            bool external_call);
+
+int lola_setup_all_analog_gains(struct lola *chip, int dir, bool mute)
+{
+       struct lola_pin *pin;
+       int idx, max_idx;
+
+       pin = chip->pin[dir].pins;
+       max_idx = chip->pin[dir].num_pins;
+       for (idx = 0; idx < max_idx; idx++) {
+               if (pin[idx].is_analog) {
+                       unsigned int val = mute ? 0 : pin[idx].cur_gain_step;
+                       /* set volume and do not save the value */
+                       set_analog_volume(chip, dir, idx, val, false);
+               }
+       }
+       return lola_codec_flush(chip);
+}
+
+void lola_save_mixer(struct lola *chip)
+{
+       /* mute analog output */
+       if (chip->mixer.array_saved) {
+               /* store contents of mixer array */
+               memcpy_fromio(chip->mixer.array_saved, chip->mixer.array,
+                             sizeof(*chip->mixer.array));
+       }
+       lola_setup_all_analog_gains(chip, PLAY, true); /* output mute */
+}
+
+void lola_restore_mixer(struct lola *chip)
+{
+       int i;
+
+       /*lola_reset_setups(chip);*/
+       if (chip->mixer.array_saved) {
+               /* restore contents of mixer array */
+               memcpy_toio(chip->mixer.array, chip->mixer.array_saved,
+                           sizeof(*chip->mixer.array));
+               /* inform micro-controller about all restored values
+                * and ignore return values
+                */
+               for (i = 0; i < chip->mixer.src_phys_ins; i++)
+                       lola_codec_write(chip, chip->mixer.nid,
+                                        LOLA_VERB_SET_SOURCE_GAIN,
+                                        i, 0);
+               for (i = 0; i < chip->mixer.src_stream_outs; i++)
+                       lola_codec_write(chip, chip->mixer.nid,
+                                        LOLA_VERB_SET_SOURCE_GAIN,
+                                        chip->mixer.src_stream_out_ofs + i, 0);
+               for (i = 0; i < chip->mixer.dest_stream_ins; i++)
+                       lola_codec_write(chip, chip->mixer.nid,
+                                        LOLA_VERB_SET_DESTINATION_GAIN,
+                                        i, 0);
+               for (i = 0; i < chip->mixer.dest_phys_outs; i++)
+                       lola_codec_write(chip, chip->mixer.nid,
+                                        LOLA_VERB_SET_DESTINATION_GAIN,
+                                        chip->mixer.dest_phys_out_ofs + i, 0);
+               lola_codec_flush(chip);
+       }
+}
+
+/*
+ */
+
+static int set_analog_volume(struct lola *chip, int dir,
+                            unsigned int idx, unsigned int val,
+                            bool external_call)
+{
+       struct lola_pin *pin;
+       int err;
+
+       if (idx >= chip->pin[dir].num_pins)
+               return -EINVAL;
+       pin = &chip->pin[dir].pins[idx];
+       if (!pin->is_analog || pin->amp_num_steps <= val)
+               return -EINVAL;
+       if (external_call && pin->cur_gain_step == val)
+               return 0;
+       if (external_call)
+               lola_codec_flush(chip);
+       dev_dbg(chip->card->dev,
+               "set_analog_volume (dir=%d idx=%d, volume=%d)\n",
+                       dir, idx, val);
+       err = lola_codec_write(chip, pin->nid,
+                              LOLA_VERB_SET_AMP_GAIN_MUTE, val, 0);
+       if (err < 0)
+               return err;
+       if (external_call)
+               pin->cur_gain_step = val;
+       return 0;
+}
+
+int lola_set_src_config(struct lola *chip, unsigned int src_mask, bool update)
+{
+       int ret = 0;
+       int success = 0;
+       int n, err;
+
+       /* SRC can be activated and the dwInputSRCMask is valid? */
+       if ((chip->input_src_caps_mask & src_mask) != src_mask)
+               return -EINVAL;
+       /* handle all even Inputs - SRC is a stereo setting !!! */
+       for (n = 0; n < chip->pin[CAPT].num_pins; n += 2) {
+               unsigned int mask = 3U << n; /* handle the stereo case */
+               unsigned int new_src, src_state;
+               if (!(chip->input_src_caps_mask & mask))
+                       continue;
+               /* if one IO needs SRC, both stereo IO will get SRC */
+               new_src = (src_mask & mask) != 0;
+               if (update) {
+                       src_state = (chip->input_src_mask & mask) != 0;
+                       if (src_state == new_src)
+                               continue;   /* nothing to change for this IO */
+               }
+               err = lola_codec_write(chip, chip->pcm[CAPT].streams[n].nid,
+                                      LOLA_VERB_SET_SRC, new_src, 0);
+               if (!err)
+                       success++;
+               else
+                       ret = err;
+       }
+       if (success)
+               ret = lola_codec_flush(chip);
+       if (!ret)
+               chip->input_src_mask = src_mask;
+       return ret;
+}
+
+/*
+ */
+static int init_mixer_values(struct lola *chip)
+{
+       int i;
+
+       /* all sample rate converters on */
+       lola_set_src_config(chip, (1 << chip->pin[CAPT].num_pins) - 1, false);
+
+       /* clear all mixer matrix settings */
+       memset_io(chip->mixer.array, 0, sizeof(*chip->mixer.array));
+       /* inform firmware about all updated matrix columns - capture part */
+       for (i = 0; i < chip->mixer.dest_stream_ins; i++)
+               lola_codec_write(chip, chip->mixer.nid,
+                                LOLA_VERB_SET_DESTINATION_GAIN,
+                                i, 0);
+       /* inform firmware about all updated matrix columns - output part */
+       for (i = 0; i < chip->mixer.dest_phys_outs; i++)
+               lola_codec_write(chip, chip->mixer.nid,
+                                LOLA_VERB_SET_DESTINATION_GAIN,
+                                chip->mixer.dest_phys_out_ofs + i, 0);
+
+       /* set all digital input source (master) gains to 0dB */
+       for (i = 0; i < chip->mixer.src_phys_ins; i++)
+               lola_mixer_set_src_gain(chip, i, 336, true); /* 0dB */
+
+       /* set all digital playback source (master) gains to 0dB */
+       for (i = 0; i < chip->mixer.src_stream_outs; i++)
+               lola_mixer_set_src_gain(chip,
+                                       i + chip->mixer.src_stream_out_ofs,
+                                       336, true); /* 0dB */
+       /* set gain value 0dB diagonally in matrix - part INPUT -> CAPTURE */
+       for (i = 0; i < chip->mixer.dest_stream_ins; i++) {
+               int src = i % chip->mixer.src_phys_ins;
+               lola_mixer_set_mapping_gain(chip, src, i, 336, true);
+       }
+       /* set gain value 0dB diagonally in matrix , part PLAYBACK -> OUTPUT
+        * (LoLa280 : playback channel 0,2,4,6 linked to output channel 0)
+        * (LoLa280 : playback channel 1,3,5,7 linked to output channel 1)
+        */
+       for (i = 0; i < chip->mixer.src_stream_outs; i++) {
+               int src = chip->mixer.src_stream_out_ofs + i;
+               int dst = chip->mixer.dest_phys_out_ofs +
+                       i % chip->mixer.dest_phys_outs;
+               lola_mixer_set_mapping_gain(chip, src, dst, 336, true);
+       }
+       return 0;
+}
+
+/*
+ * analog mixer control element
+ */
+static int lola_analog_vol_info(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_info *uinfo)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       int dir = kcontrol->private_value;
+
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+       uinfo->count = chip->pin[dir].num_pins;
+       uinfo->value.integer.min = 0;
+       uinfo->value.integer.max = chip->pin[dir].pins[0].amp_num_steps;
+       return 0;
+}
+
+static int lola_analog_vol_get(struct snd_kcontrol *kcontrol,
+                              struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       int dir = kcontrol->private_value;
+       int i;
+
+       for (i = 0; i < chip->pin[dir].num_pins; i++)
+               ucontrol->value.integer.value[i] =
+                       chip->pin[dir].pins[i].cur_gain_step;
+       return 0;
+}
+
+static int lola_analog_vol_put(struct snd_kcontrol *kcontrol,
+                              struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       int dir = kcontrol->private_value;
+       int i, err;
+
+       for (i = 0; i < chip->pin[dir].num_pins; i++) {
+               err = set_analog_volume(chip, dir, i,
+                                       ucontrol->value.integer.value[i],
+                                       true);
+               if (err < 0)
+                       return err;
+       }
+       return 0;
+}
+
+static int lola_analog_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
+                              unsigned int size, unsigned int __user *tlv)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       int dir = kcontrol->private_value;
+       unsigned int val1, val2;
+       struct lola_pin *pin;
+
+       if (size < 4 * sizeof(unsigned int))
+               return -ENOMEM;
+       pin = &chip->pin[dir].pins[0];
+
+       val2 = pin->amp_step_size * 25;
+       val1 = -1 * (int)pin->amp_offset * (int)val2;
+#ifdef TLV_DB_SCALE_MUTE
+       val2 |= TLV_DB_SCALE_MUTE;
+#endif
+       if (put_user(SNDRV_CTL_TLVT_DB_SCALE, tlv))
+               return -EFAULT;
+       if (put_user(2 * sizeof(unsigned int), tlv + 1))
+               return -EFAULT;
+       if (put_user(val1, tlv + 2))
+               return -EFAULT;
+       if (put_user(val2, tlv + 3))
+               return -EFAULT;
+       return 0;
+}
+
+static struct snd_kcontrol_new lola_analog_mixer = {
+       .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+       .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                  SNDRV_CTL_ELEM_ACCESS_TLV_READ |
+                  SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK),
+       .info = lola_analog_vol_info,
+       .get = lola_analog_vol_get,
+       .put = lola_analog_vol_put,
+       .tlv.c = lola_analog_vol_tlv,
+};
+
+static int create_analog_mixer(struct lola *chip, int dir, char *name)
+{
+       if (!chip->pin[dir].num_pins)
+               return 0;
+       /* no analog volumes on digital only adapters */
+       if (chip->pin[dir].num_pins != chip->pin[dir].num_analog_pins)
+               return 0;
+       lola_analog_mixer.name = name;
+       lola_analog_mixer.private_value = dir;
+       return snd_ctl_add(chip->card,
+                          snd_ctl_new1(&lola_analog_mixer, chip));
+}
+
+/*
+ * Hardware sample rate converter on digital input
+ */
+static int lola_input_src_info(struct snd_kcontrol *kcontrol,
+                              struct snd_ctl_elem_info *uinfo)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+       uinfo->count = chip->pin[CAPT].num_pins;
+       uinfo->value.integer.min = 0;
+       uinfo->value.integer.max = 1;
+       return 0;
+}
+
+static int lola_input_src_get(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       int i;
+
+       for (i = 0; i < chip->pin[CAPT].num_pins; i++)
+               ucontrol->value.integer.value[i] =
+                       !!(chip->input_src_mask & (1 << i));
+       return 0;
+}
+
+static int lola_input_src_put(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       int i;
+       unsigned int mask;
+
+       mask = 0;
+       for (i = 0; i < chip->pin[CAPT].num_pins; i++)
+               if (ucontrol->value.integer.value[i])
+                       mask |= 1 << i;
+       return lola_set_src_config(chip, mask, true);
+}
+
+static struct snd_kcontrol_new lola_input_src_mixer = {
+       .name = "Digital SRC Capture Switch",
+       .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+       .info = lola_input_src_info,
+       .get = lola_input_src_get,
+       .put = lola_input_src_put,
+};
+
+/*
+ * Lola16161 or Lola881 can have Hardware sample rate converters
+ * on its digital input pins
+ */
+static int create_input_src_mixer(struct lola *chip)
+{
+       if (!chip->input_src_caps_mask)
+               return 0;
+
+       return snd_ctl_add(chip->card,
+                          snd_ctl_new1(&lola_input_src_mixer, chip));
+}
+
+/*
+ * src gain mixer
+ */
+static int lola_src_gain_info(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_info *uinfo)
+{
+       unsigned int count = (kcontrol->private_value >> 8) & 0xff;
+
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+       uinfo->count = count;
+       uinfo->value.integer.min = 0;
+       uinfo->value.integer.max = 409;
+       return 0;
+}
+
+static int lola_src_gain_get(struct snd_kcontrol *kcontrol,
+                            struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       unsigned int ofs = kcontrol->private_value & 0xff;
+       unsigned int count = (kcontrol->private_value >> 8) & 0xff;
+       unsigned int mask, i;
+
+       mask = readl(&chip->mixer.array->src_gain_enable);
+       for (i = 0; i < count; i++) {
+               unsigned int idx = ofs + i;
+               unsigned short val;
+               if (!(chip->mixer.src_mask & (1 << idx)))
+                       return -EINVAL;
+               if (mask & (1 << idx))
+                       val = readw(&chip->mixer.array->src_gain[idx]) + 1;
+               else
+                       val = 0;
+               ucontrol->value.integer.value[i] = val;
+       }
+       return 0;
+}
+
+static int lola_src_gain_put(struct snd_kcontrol *kcontrol,
+                            struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       unsigned int ofs = kcontrol->private_value & 0xff;
+       unsigned int count = (kcontrol->private_value >> 8) & 0xff;
+       int i, err;
+
+       for (i = 0; i < count; i++) {
+               unsigned int idx = ofs + i;
+               unsigned short val = ucontrol->value.integer.value[i];
+               if (val)
+                       val--;
+               err = lola_mixer_set_src_gain(chip, idx, val, !!val);
+               if (err < 0)
+                       return err;
+       }
+       return 0;
+}
+
+/* raw value: 0 = -84dB, 336 = 0dB, 408=18dB, incremented 1 for mute */
+static const DECLARE_TLV_DB_SCALE(lola_src_gain_tlv, -8425, 25, 1);
+
+static struct snd_kcontrol_new lola_src_gain_mixer = {
+       .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+       .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                  SNDRV_CTL_ELEM_ACCESS_TLV_READ),
+       .info = lola_src_gain_info,
+       .get = lola_src_gain_get,
+       .put = lola_src_gain_put,
+       .tlv.p = lola_src_gain_tlv,
+};
+
+static int create_src_gain_mixer(struct lola *chip,
+                                int num, int ofs, char *name)
+{
+       lola_src_gain_mixer.name = name;
+       lola_src_gain_mixer.private_value = ofs + (num << 8);
+       return snd_ctl_add(chip->card,
+                          snd_ctl_new1(&lola_src_gain_mixer, chip));
+}
+
+#if 0 /* not used */
+/*
+ * destination gain (matrix-like) mixer
+ */
+static int lola_dest_gain_info(struct snd_kcontrol *kcontrol,
+                              struct snd_ctl_elem_info *uinfo)
+{
+       unsigned int src_num = (kcontrol->private_value >> 8) & 0xff;
+
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+       uinfo->count = src_num;
+       uinfo->value.integer.min = 0;
+       uinfo->value.integer.max = 433;
+       return 0;
+}
+
+static int lola_dest_gain_get(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       unsigned int src_ofs = kcontrol->private_value & 0xff;
+       unsigned int src_num = (kcontrol->private_value >> 8) & 0xff;
+       unsigned int dst_ofs = (kcontrol->private_value >> 16) & 0xff;
+       unsigned int dst, mask, i;
+
+       dst = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + dst_ofs;
+       mask = readl(&chip->mixer.array->dest_mix_gain_enable[dst]);
+       for (i = 0; i < src_num; i++) {
+               unsigned int src = src_ofs + i;
+               unsigned short val;
+               if (!(chip->mixer.src_mask & (1 << src)))
+                       return -EINVAL;
+               if (mask & (1 << dst))
+                       val = readw(&chip->mixer.array->dest_mix_gain[dst][src]) + 1;
+               else
+                       val = 0;
+               ucontrol->value.integer.value[i] = val;
+       }
+       return 0;
+}
+
+static int lola_dest_gain_put(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+{
+       struct lola *chip = snd_kcontrol_chip(kcontrol);
+       unsigned int src_ofs = kcontrol->private_value & 0xff;
+       unsigned int src_num = (kcontrol->private_value >> 8) & 0xff;
+       unsigned int dst_ofs = (kcontrol->private_value >> 16) & 0xff;
+       unsigned int dst, mask;
+       unsigned short gains[MAX_STREAM_COUNT];
+       int i, num;
+
+       mask = 0;
+       num = 0;
+       for (i = 0; i < src_num; i++) {
+               unsigned short val = ucontrol->value.integer.value[i];
+               if (val) {
+                       gains[num++] = val - 1;
+                       mask |= 1 << i;
+               }
+       }
+       mask <<= src_ofs;
+       dst = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + dst_ofs;
+       return lola_mixer_set_dest_gains(chip, dst, mask, gains);
+}
+
+static const DECLARE_TLV_DB_SCALE(lola_dest_gain_tlv, -8425, 25, 1);
+
+static struct snd_kcontrol_new lola_dest_gain_mixer = {
+       .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+       .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                  SNDRV_CTL_ELEM_ACCESS_TLV_READ),
+       .info = lola_dest_gain_info,
+       .get = lola_dest_gain_get,
+       .put = lola_dest_gain_put,
+       .tlv.p = lola_dest_gain_tlv,
+};
+
+static int create_dest_gain_mixer(struct lola *chip,
+                                 int src_num, int src_ofs,
+                                 int num, int ofs, char *name)
+{
+       lola_dest_gain_mixer.count = num;
+       lola_dest_gain_mixer.name = name;
+       lola_dest_gain_mixer.private_value =
+               src_ofs + (src_num << 8) + (ofs << 16) + (num << 24);
+       return snd_ctl_add(chip->card,
+                         snd_ctl_new1(&lola_dest_gain_mixer, chip));
+}
+#endif /* not used */
+
+/*
+ */
+int lola_create_mixer(struct lola *chip)
+{
+       int err;
+
+       err = create_analog_mixer(chip, PLAY, "Analog Playback Volume");
+       if (err < 0)
+               return err;
+       err = create_analog_mixer(chip, CAPT, "Analog Capture Volume");
+       if (err < 0)
+               return err;
+       err = create_input_src_mixer(chip);
+       if (err < 0)
+               return err;
+       err = create_src_gain_mixer(chip, chip->mixer.src_phys_ins, 0,
+                                   "Digital Capture Volume");
+       if (err < 0)
+               return err;
+       err = create_src_gain_mixer(chip, chip->mixer.src_stream_outs,
+                                   chip->mixer.src_stream_out_ofs,
+                                   "Digital Playback Volume");
+       if (err < 0)
+               return err;
+#if 0
+/* FIXME: buggy mixer matrix handling */
+       err = create_dest_gain_mixer(chip,
+                                    chip->mixer.src_phys_ins, 0,
+                                    chip->mixer.dest_stream_ins, 0,
+                                    "Line Capture Volume");
+       if (err < 0)
+               return err;
+       err = create_dest_gain_mixer(chip,
+                                    chip->mixer.src_stream_outs,
+                                    chip->mixer.src_stream_out_ofs,
+                                    chip->mixer.dest_stream_ins, 0,
+                                    "Stream-Loopback Capture Volume");
+       if (err < 0)
+               return err;
+       err = create_dest_gain_mixer(chip,
+                                    chip->mixer.src_phys_ins, 0,
+                                    chip->mixer.dest_phys_outs,
+                                    chip->mixer.dest_phys_out_ofs,
+                                    "Line-Loopback Playback Volume");
+       if (err < 0)
+               return err;
+       err = create_dest_gain_mixer(chip,
+                                    chip->mixer.src_stream_outs,
+                                    chip->mixer.src_stream_out_ofs,
+                                    chip->mixer.dest_phys_outs,
+                                    chip->mixer.dest_phys_out_ofs,
+                                    "Stream Playback Volume");
+       if (err < 0)
+               return err;
+#endif /* FIXME */
+       return init_mixer_values(chip);
+}