This commit was manufactured by cvs2svn to create branch 'vserver'.
[linux-2.6.git] / sound / pci / pcxhr / pcxhr_mixer.c
diff --git a/sound/pci/pcxhr/pcxhr_mixer.c b/sound/pci/pcxhr/pcxhr_mixer.c
new file mode 100644 (file)
index 0000000..94e63a1
--- /dev/null
@@ -0,0 +1,1021 @@
+#define __NO_VERSION__
+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * mixer callbacks
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   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/time.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <sound/core.h>
+#include "pcxhr.h"
+#include "pcxhr_hwdep.h"
+#include "pcxhr_core.h"
+#include <sound/control.h>
+#include <sound/asoundef.h>
+#include "pcxhr_mixer.h"
+
+
+#define PCXHR_ANALOG_CAPTURE_LEVEL_MIN   0     /* -96.0 dB */
+#define PCXHR_ANALOG_CAPTURE_LEVEL_MAX   255   /* +31.5 dB */
+#define PCXHR_ANALOG_CAPTURE_ZERO_LEVEL  224   /* +16.0 dB ( +31.5 dB - fix level +15.5 dB ) */
+
+#define PCXHR_ANALOG_PLAYBACK_LEVEL_MIN  0     /* -128.0 dB */
+#define PCXHR_ANALOG_PLAYBACK_LEVEL_MAX  128   /*    0.0 dB */
+#define PCXHR_ANALOG_PLAYBACK_ZERO_LEVEL 104   /*  -24.0 dB ( 0.0 dB - fix level +24.0 dB ) */
+
+static int pcxhr_update_analog_audio_level(struct snd_pcxhr *chip, int is_capture, int channel)
+{
+       int err, vol;
+       struct pcxhr_rmh rmh;
+
+       pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+       if (is_capture) {
+               rmh.cmd[0] |= IO_NUM_REG_IN_ANA_LEVEL;
+               rmh.cmd[2] = chip->analog_capture_volume[channel];
+       } else {
+               rmh.cmd[0] |= IO_NUM_REG_OUT_ANA_LEVEL;
+               if (chip->analog_playback_active[channel])
+                       vol = chip->analog_playback_volume[channel];
+               else
+                       vol = PCXHR_ANALOG_PLAYBACK_LEVEL_MIN;
+               rmh.cmd[2] = PCXHR_ANALOG_PLAYBACK_LEVEL_MAX - vol;     /* playback analog levels are inversed */
+       }
+       rmh.cmd[1]  = 1 << ((2 * chip->chip_idx) + channel);    /* audio mask */
+       rmh.cmd_len = 3;
+       err = pcxhr_send_msg(chip->mgr, &rmh);
+       if (err < 0) {
+               snd_printk(KERN_DEBUG "error update_analog_audio_level card(%d) "
+                          "is_capture(%d) err(%x)\n", chip->chip_idx, is_capture, err);
+               return -EINVAL;
+       }
+       return 0;
+}
+
+/*
+ * analog level control
+ */
+static int pcxhr_analog_vol_info(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+       uinfo->count = 2;
+       if (kcontrol->private_value == 0) {     /* playback */
+               uinfo->value.integer.min = PCXHR_ANALOG_PLAYBACK_LEVEL_MIN;     /* -128 dB */
+               uinfo->value.integer.max = PCXHR_ANALOG_PLAYBACK_LEVEL_MAX;     /* 0 dB */
+       } else {                                /* capture */
+               uinfo->value.integer.min = PCXHR_ANALOG_CAPTURE_LEVEL_MIN;      /* -96 dB */
+               uinfo->value.integer.max = PCXHR_ANALOG_CAPTURE_LEVEL_MAX;      /* 31.5 dB */
+       }
+       return 0;
+}
+
+static int pcxhr_analog_vol_get(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       mutex_lock(&chip->mgr->mixer_mutex);
+       if (kcontrol->private_value == 0) {     /* playback */
+               ucontrol->value.integer.value[0] = chip->analog_playback_volume[0];
+               ucontrol->value.integer.value[1] = chip->analog_playback_volume[1];
+       } else {                                /* capture */
+               ucontrol->value.integer.value[0] = chip->analog_capture_volume[0];
+               ucontrol->value.integer.value[1] = chip->analog_capture_volume[1];
+       }
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return 0;
+}
+
+static int pcxhr_analog_vol_put(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int changed = 0;
+       int is_capture, i;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       is_capture = (kcontrol->private_value != 0);
+       for (i = 0; i < 2; i++) {
+               int  new_volume = ucontrol->value.integer.value[i];
+               int* stored_volume = is_capture ? &chip->analog_capture_volume[i] :
+                       &chip->analog_playback_volume[i];
+               if (*stored_volume != new_volume) {
+                       *stored_volume = new_volume;
+                       changed = 1;
+                       pcxhr_update_analog_audio_level(chip, is_capture, i);
+               }
+       }
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_analog_level = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       /* name will be filled later */
+       .info =         pcxhr_analog_vol_info,
+       .get =          pcxhr_analog_vol_get,
+       .put =          pcxhr_analog_vol_put,
+};
+
+/* shared */
+static int pcxhr_sw_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+       uinfo->count = 2;
+       uinfo->value.integer.min = 0;
+       uinfo->value.integer.max = 1;
+       return 0;
+}
+
+static int pcxhr_audio_sw_get(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       ucontrol->value.integer.value[0] = chip->analog_playback_active[0];
+       ucontrol->value.integer.value[1] = chip->analog_playback_active[1];
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return 0;
+}
+
+static int pcxhr_audio_sw_put(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int i, changed = 0;
+       mutex_lock(&chip->mgr->mixer_mutex);
+       for(i = 0; i < 2; i++) {
+               if (chip->analog_playback_active[i] != ucontrol->value.integer.value[i]) {
+                       chip->analog_playback_active[i] = ucontrol->value.integer.value[i];
+                       changed = 1;
+                       pcxhr_update_analog_audio_level(chip, 0, i);    /* update playback levels */
+               }
+       }
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_output_switch = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       .name =         "Master Playback Switch",
+       .info =         pcxhr_sw_info,          /* shared */
+       .get =          pcxhr_audio_sw_get,
+       .put =          pcxhr_audio_sw_put
+};
+
+
+#define PCXHR_DIGITAL_LEVEL_MIN                0x000   /* -110 dB */
+#define PCXHR_DIGITAL_LEVEL_MAX                0x1ff   /* +18 dB */
+#define PCXHR_DIGITAL_ZERO_LEVEL       0x1b7   /*  0 dB */
+
+
+#define MORE_THAN_ONE_STREAM_LEVEL     0x000001
+#define VALID_STREAM_PAN_LEVEL_MASK    0x800000
+#define VALID_STREAM_LEVEL_MASK                0x400000
+#define VALID_STREAM_LEVEL_1_MASK      0x200000
+#define VALID_STREAM_LEVEL_2_MASK      0x100000
+
+static int pcxhr_update_playback_stream_level(struct snd_pcxhr* chip, int idx)
+{
+       int err;
+       struct pcxhr_rmh rmh;
+       struct pcxhr_pipe *pipe = &chip->playback_pipe;
+       int left, right;
+
+       if (chip->digital_playback_active[idx][0])
+               left = chip->digital_playback_volume[idx][0];
+       else
+               left = PCXHR_DIGITAL_LEVEL_MIN;
+       if (chip->digital_playback_active[idx][1])
+               right = chip->digital_playback_volume[idx][1];
+       else
+               right = PCXHR_DIGITAL_LEVEL_MIN;
+
+       pcxhr_init_rmh(&rmh, CMD_STREAM_OUT_LEVEL_ADJUST);
+       /* add pipe and stream mask */
+       pcxhr_set_pipe_cmd_params(&rmh, 0, pipe->first_audio, 0, 1<<idx);
+       /* volume left->left / right->right panoramic level */
+       rmh.cmd[0] |= MORE_THAN_ONE_STREAM_LEVEL;
+       rmh.cmd[2]  = VALID_STREAM_PAN_LEVEL_MASK | VALID_STREAM_LEVEL_1_MASK;
+       rmh.cmd[2] |= (left << 10);
+       rmh.cmd[3]  = VALID_STREAM_PAN_LEVEL_MASK | VALID_STREAM_LEVEL_2_MASK;
+       rmh.cmd[3] |= right;
+       rmh.cmd_len = 4;
+
+       err = pcxhr_send_msg(chip->mgr, &rmh);
+       if (err < 0) {
+               snd_printk(KERN_DEBUG "error update_playback_stream_level "
+                          "card(%d) err(%x)\n", chip->chip_idx, err);
+               return -EINVAL;
+       }
+       return 0;
+}
+
+#define AUDIO_IO_HAS_MUTE_LEVEL                0x400000
+#define AUDIO_IO_HAS_MUTE_MONITOR_1    0x200000
+#define VALID_AUDIO_IO_DIGITAL_LEVEL   0x000001
+#define VALID_AUDIO_IO_MONITOR_LEVEL   0x000002
+#define VALID_AUDIO_IO_MUTE_LEVEL      0x000004
+#define VALID_AUDIO_IO_MUTE_MONITOR_1  0x000008
+
+static int pcxhr_update_audio_pipe_level(struct snd_pcxhr* chip, int capture, int channel)
+{
+       int err;
+       struct pcxhr_rmh rmh;
+       struct pcxhr_pipe *pipe;
+
+       if (capture)
+               pipe = &chip->capture_pipe[0];
+       else
+               pipe = &chip->playback_pipe;
+
+       pcxhr_init_rmh(&rmh, CMD_AUDIO_LEVEL_ADJUST);
+       /* add channel mask */
+       pcxhr_set_pipe_cmd_params(&rmh, capture, 0, 0, 1 << (channel + pipe->first_audio));
+       /* TODO : if mask (3 << pipe->first_audio) is used, left and right channel
+        * will be programmed to the same params
+        */
+       if (capture) {
+               rmh.cmd[0] |= VALID_AUDIO_IO_DIGITAL_LEVEL;
+               /* VALID_AUDIO_IO_MUTE_LEVEL not yet handled (capture pipe level) */
+               rmh.cmd[2] = chip->digital_capture_volume[channel];
+       } else {
+               rmh.cmd[0] |= VALID_AUDIO_IO_MONITOR_LEVEL | VALID_AUDIO_IO_MUTE_MONITOR_1;
+               /* VALID_AUDIO_IO_DIGITAL_LEVEL and VALID_AUDIO_IO_MUTE_LEVEL not yet
+                * handled (playback pipe level)
+                */
+               rmh.cmd[2] = chip->monitoring_volume[channel] << 10;
+               if (chip->monitoring_active[channel] == 0)
+                       rmh.cmd[2] |= AUDIO_IO_HAS_MUTE_MONITOR_1;
+       }
+       rmh.cmd_len = 3;
+
+       err = pcxhr_send_msg(chip->mgr, &rmh);
+       if(err<0) {
+               snd_printk(KERN_DEBUG "error update_audio_level card(%d) err(%x)\n",
+                          chip->chip_idx, err);
+               return -EINVAL;
+       }
+       return 0;
+}
+
+
+/* shared */
+static int pcxhr_digital_vol_info(struct snd_kcontrol *kcontrol,
+                                 struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+       uinfo->count = 2;
+       uinfo->value.integer.min = PCXHR_DIGITAL_LEVEL_MIN;   /* -109.5 dB */
+       uinfo->value.integer.max = PCXHR_DIGITAL_LEVEL_MAX;   /*   18.0 dB */
+       return 0;
+}
+
+
+static int pcxhr_pcm_vol_get(struct snd_kcontrol *kcontrol,
+                            struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);         /* index */
+       int *stored_volume;
+       int is_capture = kcontrol->private_value;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       if (is_capture)
+               stored_volume = chip->digital_capture_volume;           /* digital capture */
+       else
+               stored_volume = chip->digital_playback_volume[idx];     /* digital playback */
+       ucontrol->value.integer.value[0] = stored_volume[0];
+       ucontrol->value.integer.value[1] = stored_volume[1];
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return 0;
+}
+
+static int pcxhr_pcm_vol_put(struct snd_kcontrol *kcontrol,
+                            struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);         /* index */
+       int changed = 0;
+       int is_capture = kcontrol->private_value;
+       int *stored_volume;
+       int i;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       if (is_capture)
+               stored_volume = chip->digital_capture_volume;           /* digital capture */
+       else
+               stored_volume = chip->digital_playback_volume[idx];     /* digital playback */
+       for (i = 0; i < 2; i++) {
+               if (stored_volume[i] != ucontrol->value.integer.value[i]) {
+                       stored_volume[i] = ucontrol->value.integer.value[i];
+                       changed = 1;
+                       if (is_capture) /* update capture volume */
+                               pcxhr_update_audio_pipe_level(chip, 1, i);
+               }
+       }
+       if (! is_capture && changed)
+               pcxhr_update_playback_stream_level(chip, idx);  /* update playback volume */
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return changed;
+}
+
+static struct snd_kcontrol_new snd_pcxhr_pcm_vol =
+{
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       /* name will be filled later */
+       /* count will be filled later */
+       .info =         pcxhr_digital_vol_info,         /* shared */
+       .get =          pcxhr_pcm_vol_get,
+       .put =          pcxhr_pcm_vol_put,
+};
+
+
+static int pcxhr_pcm_sw_get(struct snd_kcontrol *kcontrol,
+                           struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       ucontrol->value.integer.value[0] = chip->digital_playback_active[idx][0];
+       ucontrol->value.integer.value[1] = chip->digital_playback_active[idx][1];
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return 0;
+}
+
+static int pcxhr_pcm_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int changed = 0;
+       int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
+       int i, j;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       j = idx;
+       for (i = 0; i < 2; i++) {
+               if (chip->digital_playback_active[j][i] != ucontrol->value.integer.value[i]) {
+                       chip->digital_playback_active[j][i] = ucontrol->value.integer.value[i];
+                       changed = 1;
+               }
+       }
+       if (changed)
+               pcxhr_update_playback_stream_level(chip, idx);
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_pcm_switch = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       .name =         "PCM Playback Switch",
+       .count =        PCXHR_PLAYBACK_STREAMS,
+       .info =         pcxhr_sw_info,          /* shared */
+       .get =          pcxhr_pcm_sw_get,
+       .put =          pcxhr_pcm_sw_put
+};
+
+
+/*
+ * monitoring level control
+ */
+
+static int pcxhr_monitor_vol_get(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       mutex_lock(&chip->mgr->mixer_mutex);
+       ucontrol->value.integer.value[0] = chip->monitoring_volume[0];
+       ucontrol->value.integer.value[1] = chip->monitoring_volume[1];
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return 0;
+}
+
+static int pcxhr_monitor_vol_put(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int changed = 0;
+       int i;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       for (i = 0; i < 2; i++) {
+               if (chip->monitoring_volume[i] != ucontrol->value.integer.value[i]) {
+                       chip->monitoring_volume[i] = ucontrol->value.integer.value[i];
+                       if(chip->monitoring_active[i])  /* do only when monitoring is unmuted */
+                               /* update monitoring volume and mute */
+                               pcxhr_update_audio_pipe_level(chip, 0, i);
+                       changed = 1;
+               }
+       }
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_monitor_vol = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       .name =         "Monitoring Volume",
+       .info =         pcxhr_digital_vol_info,         /* shared */
+       .get =          pcxhr_monitor_vol_get,
+       .put =          pcxhr_monitor_vol_put,
+};
+
+/*
+ * monitoring switch control
+ */
+
+static int pcxhr_monitor_sw_get(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       mutex_lock(&chip->mgr->mixer_mutex);
+       ucontrol->value.integer.value[0] = chip->monitoring_active[0];
+       ucontrol->value.integer.value[1] = chip->monitoring_active[1];
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return 0;
+}
+
+static int pcxhr_monitor_sw_put(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int changed = 0;
+       int i;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       for (i = 0; i < 2; i++) {
+               if (chip->monitoring_active[i] != ucontrol->value.integer.value[i]) {
+                       chip->monitoring_active[i] = ucontrol->value.integer.value[i];
+                       changed |= (1<<i); /* mask 0x01 and 0x02 */
+               }
+       }
+       if(changed & 0x01)
+               /* update left monitoring volume and mute */
+               pcxhr_update_audio_pipe_level(chip, 0, 0);
+       if(changed & 0x02)
+               /* update right monitoring volume and mute */
+               pcxhr_update_audio_pipe_level(chip, 0, 1);
+
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return (changed != 0);
+}
+
+static struct snd_kcontrol_new pcxhr_control_monitor_sw = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       .name =         "Monitoring Switch",
+       .info =         pcxhr_sw_info,          /* shared */
+       .get =          pcxhr_monitor_sw_get,
+       .put =          pcxhr_monitor_sw_put
+};
+
+
+
+/*
+ * audio source select
+ */
+#define PCXHR_SOURCE_AUDIO01_UER       0x000100
+#define PCXHR_SOURCE_AUDIO01_SYNC      0x000200
+#define PCXHR_SOURCE_AUDIO23_UER       0x000400
+#define PCXHR_SOURCE_AUDIO45_UER       0x001000
+#define PCXHR_SOURCE_AUDIO67_UER       0x040000
+
+static int pcxhr_set_audio_source(struct snd_pcxhr* chip)
+{
+       struct pcxhr_rmh rmh;
+       unsigned int mask, reg;
+       unsigned int codec;
+       int err, use_src, changed;
+
+       switch (chip->chip_idx) {
+       case 0 : mask = PCXHR_SOURCE_AUDIO01_UER; codec = CS8420_01_CS; break;
+       case 1 : mask = PCXHR_SOURCE_AUDIO23_UER; codec = CS8420_23_CS; break;
+       case 2 : mask = PCXHR_SOURCE_AUDIO45_UER; codec = CS8420_45_CS; break;
+       case 3 : mask = PCXHR_SOURCE_AUDIO67_UER; codec = CS8420_67_CS; break;
+       default: return -EINVAL;
+       }
+       reg = 0;        /* audio source from analog plug */
+       use_src = 0;    /* do not activate codec SRC */
+
+       if (chip->audio_capture_source != 0) {
+               reg = mask;     /* audio source from digital plug */
+               if (chip->audio_capture_source == 2)
+                       use_src = 1;
+       }
+       /* set the input source */
+       pcxhr_write_io_num_reg_cont(chip->mgr, mask, reg, &changed);
+       /* resync them (otherwise channel inversion possible) */
+       if (changed) {
+               pcxhr_init_rmh(&rmh, CMD_RESYNC_AUDIO_INPUTS);
+               rmh.cmd[0] |= (1 << chip->chip_idx);
+               err = pcxhr_send_msg(chip->mgr, &rmh);
+               if (err)
+                       return err;
+       }
+       pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);      /* set codec SRC on off */
+       rmh.cmd_len = 3;
+       rmh.cmd[0] |= IO_NUM_UER_CHIP_REG;
+       rmh.cmd[1] = codec;
+       rmh.cmd[2] = (CS8420_DATA_FLOW_CTL & CHIP_SIG_AND_MAP_SPI) | (use_src ? 0x41 : 0x54);
+       err = pcxhr_send_msg(chip->mgr, &rmh);
+       if(err)
+               return err;
+       rmh.cmd[2] = (CS8420_CLOCK_SRC_CTL & CHIP_SIG_AND_MAP_SPI) | (use_src ? 0x41 : 0x49);
+       err = pcxhr_send_msg(chip->mgr, &rmh);
+       return err;
+}
+
+static int pcxhr_audio_src_info(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_info *uinfo)
+{
+       static char *texts[3] = {"Analog", "Digital", "Digi+SRC"};
+
+       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 pcxhr_audio_src_get(struct snd_kcontrol *kcontrol,
+                              struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       ucontrol->value.enumerated.item[0] = chip->audio_capture_source;
+       return 0;
+}
+
+static int pcxhr_audio_src_put(struct snd_kcontrol *kcontrol,
+                              struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int ret = 0;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       if (chip->audio_capture_source != ucontrol->value.enumerated.item[0]) {
+               chip->audio_capture_source = ucontrol->value.enumerated.item[0];
+               pcxhr_set_audio_source(chip);
+               ret = 1;
+       }
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return ret;
+}
+
+static struct snd_kcontrol_new pcxhr_control_audio_src = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       .name =         "Capture Source",
+       .info =         pcxhr_audio_src_info,
+       .get =          pcxhr_audio_src_get,
+       .put =          pcxhr_audio_src_put,
+};
+
+
+/*
+ * clock type selection
+ * enum pcxhr_clock_type {
+ *             PCXHR_CLOCK_TYPE_INTERNAL = 0,
+ *             PCXHR_CLOCK_TYPE_WORD_CLOCK,
+ *             PCXHR_CLOCK_TYPE_AES_SYNC,
+ *             PCXHR_CLOCK_TYPE_AES_1,
+ *             PCXHR_CLOCK_TYPE_AES_2,
+ *             PCXHR_CLOCK_TYPE_AES_3,
+ *             PCXHR_CLOCK_TYPE_AES_4,
+ *     };
+ */
+
+static int pcxhr_clock_type_info(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_info *uinfo)
+{
+       static char *texts[7] = {
+               "Internal", "WordClock", "AES Sync", "AES 1", "AES 2", "AES 3", "AES 4"
+       };
+       struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+       int clock_items = 3 + mgr->capture_chips;
+
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+       uinfo->count = 1;
+       uinfo->value.enumerated.items = clock_items;
+       if (uinfo->value.enumerated.item >= clock_items)
+               uinfo->value.enumerated.item = clock_items-1;
+       strcpy(uinfo->value.enumerated.name,
+               texts[uinfo->value.enumerated.item]);
+       return 0;
+}
+
+static int pcxhr_clock_type_get(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+       ucontrol->value.enumerated.item[0] = mgr->use_clock_type;
+       return 0;
+}
+
+static int pcxhr_clock_type_put(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+       int rate, ret = 0;
+
+       mutex_lock(&mgr->mixer_mutex);
+       if (mgr->use_clock_type != ucontrol->value.enumerated.item[0]) {
+               mutex_lock(&mgr->setup_mutex);
+               mgr->use_clock_type = ucontrol->value.enumerated.item[0];
+               if (mgr->use_clock_type)
+                       pcxhr_get_external_clock(mgr, mgr->use_clock_type, &rate);
+               else
+                       rate = mgr->sample_rate;
+               if (rate) {
+                       pcxhr_set_clock(mgr, rate);
+                       if (mgr->sample_rate)
+                               mgr->sample_rate = rate;
+               }
+               mutex_unlock(&mgr->setup_mutex);
+               ret = 1;        /* return 1 even if the set was not done. ok ? */
+       }
+       mutex_unlock(&mgr->mixer_mutex);
+       return ret;
+}
+
+static struct snd_kcontrol_new pcxhr_control_clock_type = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+       .name =         "Clock Mode",
+       .info =         pcxhr_clock_type_info,
+       .get =          pcxhr_clock_type_get,
+       .put =          pcxhr_clock_type_put,
+};
+
+/*
+ * clock rate control
+ * specific control that scans the sample rates on the external plugs
+ */
+static int pcxhr_clock_rate_info(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_info *uinfo)
+{
+       struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+       uinfo->count = 3 + mgr->capture_chips;
+       uinfo->value.integer.min = 0;           /* clock not present */
+       uinfo->value.integer.max = 192000;      /* max sample rate 192 kHz */
+       return 0;
+}
+
+static int pcxhr_clock_rate_get(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+       int i, err, rate;
+
+       mutex_lock(&mgr->mixer_mutex);
+       for(i = 0; i < 3 + mgr->capture_chips; i++) {
+               if (i == PCXHR_CLOCK_TYPE_INTERNAL)
+                       rate = mgr->sample_rate_real;
+               else {
+                       err = pcxhr_get_external_clock(mgr, i, &rate);
+                       if (err)
+                               break;
+               }
+               ucontrol->value.integer.value[i] = rate;
+       }
+       mutex_unlock(&mgr->mixer_mutex);
+       return 0;
+}
+
+static struct snd_kcontrol_new pcxhr_control_clock_rate = {
+       .access =       SNDRV_CTL_ELEM_ACCESS_READ,
+       .iface =        SNDRV_CTL_ELEM_IFACE_CARD,
+       .name =         "Clock Rates",
+       .info =         pcxhr_clock_rate_info,
+       .get =          pcxhr_clock_rate_get,
+};
+
+/*
+ * IEC958 status bits
+ */
+static int pcxhr_iec958_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 pcxhr_iec958_capture_byte(struct snd_pcxhr *chip, int aes_idx, unsigned char* aes_bits)
+{
+       int i, err;
+       unsigned char temp;
+       struct pcxhr_rmh rmh;
+
+       pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
+       rmh.cmd[0] |= IO_NUM_UER_CHIP_REG;
+       switch (chip->chip_idx) {
+       case 0: rmh.cmd[1] = CS8420_01_CS; break;       /* use CS8416_01_CS for AES SYNC plug */
+       case 1: rmh.cmd[1] = CS8420_23_CS; break;
+       case 2: rmh.cmd[1] = CS8420_45_CS; break;
+       case 3: rmh.cmd[1] = CS8420_67_CS; break;
+       default: return -EINVAL;
+       }
+       switch (aes_idx) {
+       case 0: rmh.cmd[2] = CS8420_CSB0; break;        /* use CS8416_CSBx for AES SYNC plug */
+       case 1: rmh.cmd[2] = CS8420_CSB1; break;
+       case 2: rmh.cmd[2] = CS8420_CSB2; break;
+       case 3: rmh.cmd[2] = CS8420_CSB3; break;
+       case 4: rmh.cmd[2] = CS8420_CSB4; break;
+       default: return -EINVAL;
+       }
+       rmh.cmd[1] &= 0x0fffff;                 /* size and code the chip id for the fpga */
+       rmh.cmd[2] &= CHIP_SIG_AND_MAP_SPI;     /* chip signature + map for spi read */
+       rmh.cmd_len = 3;
+       err = pcxhr_send_msg(chip->mgr, &rmh);
+       if (err)
+               return err;
+       temp = 0;
+       for (i = 0; i < 8; i++) {
+               /* attention : reversed bit order (not with CS8416_01_CS) */
+               temp <<= 1;
+               if (rmh.stat[1] & (1 << i))
+                       temp |= 1;
+       }
+       snd_printdd("read iec958 AES %d byte %d = 0x%x\n", chip->chip_idx, aes_idx, temp);
+       *aes_bits = temp;
+       return 0;
+}
+
+static int pcxhr_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       unsigned char aes_bits;
+       int i, err;
+
+       mutex_lock(&chip->mgr->mixer_mutex);
+       for(i = 0; i < 5; i++) {
+               if (kcontrol->private_value == 0)       /* playback */
+                       aes_bits = chip->aes_bits[i];
+               else {                          /* capture */
+                       err = pcxhr_iec958_capture_byte(chip, i, &aes_bits);
+                       if (err)
+                               break;
+               }
+               ucontrol->value.iec958.status[i] = aes_bits;
+       }
+       mutex_unlock(&chip->mgr->mixer_mutex);
+        return 0;
+}
+
+static int pcxhr_iec958_mask_get(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+       int i;
+       for (i = 0; i < 5; i++)
+               ucontrol->value.iec958.status[i] = 0xff;
+        return 0;
+}
+
+static int pcxhr_iec958_update_byte(struct snd_pcxhr *chip, int aes_idx, unsigned char aes_bits)
+{
+       int i, err, cmd;
+       unsigned char new_bits = aes_bits;
+       unsigned char old_bits = chip->aes_bits[aes_idx];
+       struct pcxhr_rmh rmh;
+
+       for (i = 0; i < 8; i++) {
+               if ((old_bits & 0x01) != (new_bits & 0x01)) {
+                       cmd = chip->chip_idx & 0x03;            /* chip index 0..3 */
+                       if(chip->chip_idx > 3)
+                               /* new bit used if chip_idx>3 (PCX1222HR) */
+                               cmd |= 1 << 22;
+                       cmd |= ((aes_idx << 3) + i) << 2;       /* add bit offset */
+                       cmd |= (new_bits & 0x01) << 23;         /* add bit value */
+                       pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+                       rmh.cmd[0] |= IO_NUM_REG_CUER;
+                       rmh.cmd[1] = cmd;
+                       rmh.cmd_len = 2;
+                       snd_printdd("write iec958 AES %d byte %d bit %d (cmd %x)\n",
+                                   chip->chip_idx, aes_idx, i, cmd);
+                       err = pcxhr_send_msg(chip->mgr, &rmh);
+                       if (err)
+                               return err;
+               }
+               old_bits >>= 1;
+               new_bits >>= 1;
+       }
+       chip->aes_bits[aes_idx] = aes_bits;
+       return 0;
+}
+
+static int pcxhr_iec958_put(struct snd_kcontrol *kcontrol,
+                           struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+       int i, changed = 0;
+
+       /* playback */
+       mutex_lock(&chip->mgr->mixer_mutex);
+       for (i = 0; i < 5; i++) {
+               if (ucontrol->value.iec958.status[i] != chip->aes_bits[i]) {
+                       pcxhr_iec958_update_byte(chip, i, ucontrol->value.iec958.status[i]);
+                       changed = 1;
+               }
+       }
+       mutex_unlock(&chip->mgr->mixer_mutex);
+       return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_playback_iec958_mask = {
+       .access =       SNDRV_CTL_ELEM_ACCESS_READ,
+       .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+       .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
+       .info =         pcxhr_iec958_info,
+       .get =          pcxhr_iec958_mask_get
+};
+static struct snd_kcontrol_new pcxhr_control_playback_iec958 = {
+       .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+       .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
+       .info =         pcxhr_iec958_info,
+       .get =          pcxhr_iec958_get,
+       .put =          pcxhr_iec958_put,
+       .private_value = 0 /* playback */
+};
+
+static struct snd_kcontrol_new pcxhr_control_capture_iec958_mask = {
+       .access =       SNDRV_CTL_ELEM_ACCESS_READ,
+       .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+       .name =         SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
+       .info =         pcxhr_iec958_info,
+       .get =          pcxhr_iec958_mask_get
+};
+static struct snd_kcontrol_new pcxhr_control_capture_iec958 = {
+       .access =       SNDRV_CTL_ELEM_ACCESS_READ,
+       .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+       .name =         SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
+       .info =         pcxhr_iec958_info,
+       .get =          pcxhr_iec958_get,
+       .private_value = 1 /* capture */
+};
+
+static void pcxhr_init_audio_levels(struct snd_pcxhr *chip)
+{
+       int i;
+
+       for (i = 0; i < 2; i++) {
+               if (chip->nb_streams_play) {
+                       int j;
+                       /* at boot time the digital volumes are unmuted 0dB */
+                       for (j = 0; j < PCXHR_PLAYBACK_STREAMS; j++) {
+                               chip->digital_playback_active[j][i] = 1;
+                               chip->digital_playback_volume[j][i] = PCXHR_DIGITAL_ZERO_LEVEL;
+                       }
+                       /* after boot, only two bits are set on the uer interface */
+                       chip->aes_bits[0] = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_FS_48000;
+/* only for test purpose, remove later */
+#ifdef CONFIG_SND_DEBUG
+                       /* analog volumes for playback (is LEVEL_MIN after boot) */
+                       chip->analog_playback_active[i] = 1;
+                       chip->analog_playback_volume[i] = PCXHR_ANALOG_PLAYBACK_ZERO_LEVEL;
+                       pcxhr_update_analog_audio_level(chip, 0, i);
+#endif
+/* test end */
+               }
+               if (chip->nb_streams_capt) {
+                       /* at boot time the digital volumes are unmuted 0dB */
+                       chip->digital_capture_volume[i] = PCXHR_DIGITAL_ZERO_LEVEL;
+/* only for test purpose, remove later */
+#ifdef CONFIG_SND_DEBUG
+                       /* analog volumes for playback (is LEVEL_MIN after boot) */
+                       chip->analog_capture_volume[i]  = PCXHR_ANALOG_CAPTURE_ZERO_LEVEL;
+                       pcxhr_update_analog_audio_level(chip, 1, i);
+#endif
+/* test end */
+               }
+       }
+
+       return;
+}
+
+
+int pcxhr_create_mixer(struct pcxhr_mgr *mgr)
+{
+       struct snd_pcxhr *chip;
+       int err, i;
+
+       mutex_init(&mgr->mixer_mutex); /* can be in another place */
+
+       for (i = 0; i < mgr->num_cards; i++) {
+               struct snd_kcontrol_new temp;
+               chip = mgr->chip[i];
+
+               if (chip->nb_streams_play) {
+                       /* analog output level control */
+                       temp = pcxhr_control_analog_level;
+                       temp.name = "Master Playback Volume";
+                       temp.private_value = 0; /* playback */
+                       if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+                               return err;
+                       /* output mute controls */
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_output_switch,
+                                                           chip))) < 0)
+                               return err;
+                       
+                       temp = snd_pcxhr_pcm_vol;
+                       temp.name = "PCM Playback Volume";
+                       temp.count = PCXHR_PLAYBACK_STREAMS;
+                       temp.private_value = 0; /* playback */
+                       if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+                               return err;
+
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_pcm_switch,
+                                                           chip))) < 0)
+                               return err;
+
+                       /* IEC958 controls */
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_playback_iec958_mask,
+                                                           chip))) < 0)
+                               return err;
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_playback_iec958,
+                                                           chip))) < 0)
+                               return err;
+               }
+               if (chip->nb_streams_capt) {
+                       /* analog input level control only on first two chips !*/
+                       temp = pcxhr_control_analog_level;
+                       temp.name = "Master Capture Volume";
+                       temp.private_value = 1; /* capture */
+                       if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+                               return err;
+
+                       temp = snd_pcxhr_pcm_vol;
+                       temp.name = "PCM Capture Volume";
+                       temp.count = 1;
+                       temp.private_value = 1; /* capture */
+                       if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+                               return err;
+                       /* Audio source */
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_audio_src,
+                                                           chip))) < 0)
+                               return err;
+                       /* IEC958 controls */
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_capture_iec958_mask,
+                                                           chip))) < 0)
+                               return err;
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_capture_iec958,
+                                                           chip))) < 0)
+                               return err;
+               }
+               /* monitoring only if playback and capture device available */
+               if (chip->nb_streams_capt > 0 && chip->nb_streams_play > 0) {
+                       /* monitoring */
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_monitor_vol,
+                                                           chip))) < 0)
+                               return err;
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_monitor_sw,
+                                                           chip))) < 0)
+                               return err;
+               }
+
+               if (i == 0) {
+                       /* clock mode only one control per pcxhr */
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_clock_type,
+                                                           mgr))) < 0)
+                               return err;
+                       /* non standard control used to scan the external clock presence/frequencies */
+                       if ((err = snd_ctl_add(chip->card,
+                                              snd_ctl_new1(&pcxhr_control_clock_rate,
+                                                           mgr))) < 0)
+                               return err;
+               }
+
+               /* init values for the mixer data */
+               pcxhr_init_audio_levels(chip);
+       }
+
+       return 0;
+}