[ALSA] emu10k1: Add Audio capture support for Audigy 2 ZS Notebook.

Implement functionallity in order to fixe ALSA bug#2058.

Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 200 insertions, 1 deletions

diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c
index 9b7fd564343e..b8221f385ff9 100644
--- a/sound/pci/emu10k1/emumixer.c
+++ b/sound/pci/emu10k1/emumixer.c
@@ -36,9 +36,14 @@
 #include <sound/core.h>
 #include <sound/emu10k1.h>
 #include <linux/delay.h>
+#include <sound/tlv.h>
+
+#include "p17v.h"
 
 #define AC97_ID_STAC9758        0x83847658
 
+static DECLARE_TLV_DB_SCALE(snd_audigy_db_scale2, -10350, 50, 1); /* WM8775 gain scale */
+
 static int snd_emu10k1_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
@@ -579,6 +584,162 @@ static struct snd_kcontrol_new snd_emu1010_internal_clock =
         .put =          snd_emu1010_internal_clock_put
 };
 
+static int snd_audigy_i2c_capture_source_info(struct snd_kcontrol *kcontrol,
+                                          struct snd_ctl_elem_info *uinfo)
+{
+#if 0
+        static char *texts[4] = {
+                "Unknown1", "Unknown2", "Mic", "Line"
+        };
+#endif
+        static char *texts[2] = {
+                "Mic", "Line"
+        };
+
+        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_audigy_i2c_capture_source_get(struct snd_kcontrol *kcontrol,
+                                        struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+
+        ucontrol->value.enumerated.item[0] = emu->i2c_capture_source;
+        return 0;
+}
+
+static int snd_audigy_i2c_capture_source_put(struct snd_kcontrol *kcontrol,
+                                        struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+        unsigned int source_id;
+        unsigned int ngain, ogain;
+        u32 gpio;
+        int change = 0;
+        unsigned long flags;
+        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]; /* Use 2 and 3 */
+        change = (emu->i2c_capture_source != source_id);
+        if (change) {
+                snd_emu10k1_i2c_write(emu, ADC_MUX, 0); /* Mute input */
+                spin_lock_irqsave(&emu->emu_lock, flags);
+                gpio = inl(emu->port + A_IOCFG);
+                if (source_id==0)
+                        outl(gpio | 0x4, emu->port + A_IOCFG);
+                else
+                        outl(gpio & ~0x4, emu->port + A_IOCFG);
+                spin_unlock_irqrestore(&emu->emu_lock, flags);
+
+                ngain = emu->i2c_capture_volume[source_id][0]; /* Left */
+                ogain = emu->i2c_capture_volume[emu->i2c_capture_source][0]; /* Left */
+                if (ngain != ogain)
+                        snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff));
+                ngain = emu->i2c_capture_volume[source_id][1]; /* Right */
+                ogain = emu->i2c_capture_volume[emu->i2c_capture_source][1]; /* Right */
+                if (ngain != ogain)
+                        snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));
+
+                source = 1 << (source_id + 2);
+                snd_emu10k1_i2c_write(emu, ADC_MUX, source); /* Set source */
+                emu->i2c_capture_source = source_id;
+        }
+        return change;
+}
+
+static struct snd_kcontrol_new snd_audigy_i2c_capture_source =
+{
+                .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+                .name =         "Capture Source",
+                .info =         snd_audigy_i2c_capture_source_info,
+                .get =          snd_audigy_i2c_capture_source_get,
+                .put =          snd_audigy_i2c_capture_source_put
+};
+
+static int snd_audigy_i2c_volume_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 = 0;
+        uinfo->value.integer.max = 255;
+        return 0;
+}
+
+static int snd_audigy_i2c_volume_get(struct snd_kcontrol *kcontrol,
+                                 struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+        int source_id;
+
+        source_id = kcontrol->private_value;
+
+        ucontrol->value.integer.value[0] = emu->i2c_capture_volume[source_id][0];
+        ucontrol->value.integer.value[1] = emu->i2c_capture_volume[source_id][1];
+        return 0;
+}
+
+static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
+                                 struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+        unsigned int ogain;
+        unsigned int ngain;
+        int source_id;
+        int change = 0;
+
+        source_id = kcontrol->private_value;
+        ogain = emu->i2c_capture_volume[source_id][0]; /* Left */
+        ngain = ucontrol->value.integer.value[0];
+        if (ngain > 0xff)
+                return 0;
+        if (ogain != ngain) {
+                if (emu->i2c_capture_source == source_id)
+                        snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff) );
+                emu->i2c_capture_volume[source_id][0] = ucontrol->value.integer.value[0];
+                change = 1;
+        }
+        ogain = emu->i2c_capture_volume[source_id][1]; /* Right */
+        ngain = ucontrol->value.integer.value[1];
+        if (ngain > 0xff)
+                return 0;
+        if (ogain != ngain) {
+                if (emu->i2c_capture_source == source_id)
+                        snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));
+                emu->i2c_capture_volume[source_id][1] = ucontrol->value.integer.value[1];
+                change = 1;
+        }
+
+        return change;
+}
+
+#define I2C_VOLUME(xname,chid) \
+{                                                               \
+        .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,     \
+        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
+                  SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
+        .info =  snd_audigy_i2c_volume_info,                    \
+        .get =   snd_audigy_i2c_volume_get,                     \
+        .put =   snd_audigy_i2c_volume_put,                     \
+        .tlv = { .p = snd_audigy_db_scale2 },                   \
+        .private_value = chid                                   \
+}
+
+
+static struct snd_kcontrol_new snd_audigy_i2c_volume_ctls[] __devinitdata = {
+        I2C_VOLUME("Mic Capture Volume", 0),
+        I2C_VOLUME("Line Capture Volume", 0)
+};
+
 #if 0
 static int snd_audigy_spdif_output_rate_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
@@ -1179,7 +1340,9 @@ static int snd_emu10k1_shared_spdif_put(struct snd_kcontrol *kcontrol,
         int change = 0;
 
         spin_lock_irqsave(&emu->reg_lock, flags);
-        if (emu->audigy) {
+        if ( emu->card_capabilities->i2c_adc) {
+                /* Do nothing for Audigy 2 ZS Notebook */
+        } else if (emu->audigy) {
                 reg = inl(emu->port + A_IOCFG);
                 val = ucontrol->value.integer.value[0] ? A_IOCFG_GPOUT0 : 0;
                 change = (reg & A_IOCFG_GPOUT0) != val;
@@ -1317,6 +1480,22 @@ int __devinit snd_emu10k1_mixer(struct snd_emu10k1 *emu,
                 "AMic Playback Volume", "Mic Playback Volume",
                 NULL
         };
+        static char *audigy_rename_ctls_i2c_adc[] = {
+                //"Analog Mix Capture Volume","OLD Analog Mix Capture Volume",
+                "Line Capture Volume", "Analog Mix Capture Volume",
+                "Wave Playback Volume", "OLD PCM Playback Volume",
+                "Wave Master Playback Volume", "Master Playback Volume",
+                "AMic Playback Volume", "Old Mic Playback Volume",
+                NULL
+        };
+        static char *audigy_remove_ctls_i2c_adc[] = {
+                /* On the Audigy2 ZS Notebook
+                 * Capture via WM8775  */
+                "Mic Capture Volume",
+                "Analog Mix Capture Volume",
+                "Aux Capture Volume",
+                NULL
+        };
         static char *audigy_remove_ctls_1361t_adc[] = {
                 /* On the Audigy2 the AC97 playback is piped into
                  * the Philips ADC for 24bit capture */
@@ -1409,6 +1588,10 @@ int __devinit snd_emu10k1_mixer(struct snd_emu10k1 *emu,
                 }
                 for (; *c; c++)
                         remove_ctl(card, *c);
+        } else if (emu->card_capabilities->i2c_adc) {
+                c = audigy_remove_ctls_i2c_adc;
+                for (; *c; c++)
+                        remove_ctl(card, *c);
         } else {
         no_ac97:
                 if (emu->card_capabilities->ecard)
@@ -1422,6 +1605,8 @@ int __devinit snd_emu10k1_mixer(struct snd_emu10k1 *emu,
         if (emu->audigy)
                 if (emu->card_capabilities->adc_1361t)
                         c = audigy_rename_ctls_1361t_adc;
+                else if (emu->card_capabilities->i2c_adc)
+                        c = audigy_rename_ctls_i2c_adc;
                 else
                         c = audigy_rename_ctls;
         else
@@ -1584,6 +1769,20 @@ int __devinit snd_emu10k1_mixer(struct snd_emu10k1 *emu,
                 if (err < 0)
                         return err;
         }
+
+        if ( emu->card_capabilities->i2c_adc) {
+                int i;
+
+                err = snd_ctl_add(card, snd_ctl_new1(&snd_audigy_i2c_capture_source, emu));
+                if (err < 0)
+                        return err;
+
+                for (i = 0; i < ARRAY_SIZE(snd_audigy_i2c_volume_ctls); i++) {
+                        err = snd_ctl_add(card, snd_ctl_new1(&snd_audigy_i2c_volume_ctls[i], emu));
+                        if (err < 0)
+                                return err;
+                }
+        }
                 
         return 0;
 }