ALSA: emu10k1: add toggles for E-mu 1010 optical ports

The optical ports on the E-mu 1010 (and dock) can be configured
for ADAT- or S/PDIF-mode, which is currently hardcoded to ADAT.
Add two mixer elements to expose this setting.
Tested on an E-mu 1010 PCIe with connected Micro Dock.

Signed-off-by: Michael Gernoth <michael@gernoth.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 118 insertions, 0 deletions

diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c
index 1de33025669a..55e57166256e 100644
--- a/sound/pci/emu10k1/emumixer.c
+++ b/sound/pci/emu10k1/emumixer.c
@@ -806,6 +806,108 @@ static struct snd_kcontrol_new snd_emu1010_internal_clock =
         .put =          snd_emu1010_internal_clock_put
 };
 
+static int snd_emu1010_optical_out_info(struct snd_kcontrol *kcontrol,
+                                          struct snd_ctl_elem_info *uinfo)
+{
+        static const char * const texts[2] = {
+                "SPDIF", "ADAT"
+        };
+
+        return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int snd_emu1010_optical_out_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->emu1010.optical_out;
+        return 0;
+}
+
+static int snd_emu1010_optical_out_put(struct snd_kcontrol *kcontrol,
+                                        struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+        unsigned int val;
+        u32 tmp;
+        int change = 0;
+
+        val = ucontrol->value.enumerated.item[0];
+        /* Limit: uinfo->value.enumerated.items = 2; */
+        if (val >= 2)
+                return -EINVAL;
+        change = (emu->emu1010.optical_out != val);
+        if (change) {
+                emu->emu1010.optical_out = val;
+                tmp = (emu->emu1010.optical_in ? EMU_HANA_OPTICAL_IN_ADAT : 0) |
+                        (emu->emu1010.optical_out ? EMU_HANA_OPTICAL_OUT_ADAT : 0);
+                snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, tmp);
+        }
+        return change;
+}
+
+static struct snd_kcontrol_new snd_emu1010_optical_out = {
+        .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE,
+        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+        .name =         "Optical Output Mode",
+        .count =        1,
+        .info =         snd_emu1010_optical_out_info,
+        .get =          snd_emu1010_optical_out_get,
+        .put =          snd_emu1010_optical_out_put
+};
+
+static int snd_emu1010_optical_in_info(struct snd_kcontrol *kcontrol,
+                                          struct snd_ctl_elem_info *uinfo)
+{
+        static const char * const texts[2] = {
+                "SPDIF", "ADAT"
+        };
+
+        return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int snd_emu1010_optical_in_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->emu1010.optical_in;
+        return 0;
+}
+
+static int snd_emu1010_optical_in_put(struct snd_kcontrol *kcontrol,
+                                        struct snd_ctl_elem_value *ucontrol)
+{
+        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
+        unsigned int val;
+        u32 tmp;
+        int change = 0;
+
+        val = ucontrol->value.enumerated.item[0];
+        /* Limit: uinfo->value.enumerated.items = 2; */
+        if (val >= 2)
+                return -EINVAL;
+        change = (emu->emu1010.optical_in != val);
+        if (change) {
+                emu->emu1010.optical_in = val;
+                tmp = (emu->emu1010.optical_in ? EMU_HANA_OPTICAL_IN_ADAT : 0) |
+                        (emu->emu1010.optical_out ? EMU_HANA_OPTICAL_OUT_ADAT : 0);
+                snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, tmp);
+        }
+        return change;
+}
+
+static struct snd_kcontrol_new snd_emu1010_optical_in = {
+        .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE,
+        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+        .name =         "Optical Input Mode",
+        .count =        1,
+        .info =         snd_emu1010_optical_in_info,
+        .get =          snd_emu1010_optical_in_get,
+        .put =          snd_emu1010_optical_in_put
+};
+
 static int snd_audigy_i2c_capture_source_info(struct snd_kcontrol *kcontrol,
                                           struct snd_ctl_elem_info *uinfo)
 {
@@ -2051,6 +2153,14 @@ int snd_emu10k1_mixer(struct snd_emu10k1 *emu,
                         snd_ctl_new1(&snd_emu1010_internal_clock, emu));
                 if (err < 0)
                         return err;
+                err = snd_ctl_add(card,
+                        snd_ctl_new1(&snd_emu1010_optical_out, emu));
+                if (err < 0)
+                        return err;
+                err = snd_ctl_add(card,
+                        snd_ctl_new1(&snd_emu1010_optical_in, emu));
+                if (err < 0)
+                        return err;
 
         } else if (emu->card_capabilities->emu_model) {
                 /* all other e-mu cards for now */
@@ -2086,6 +2196,14 @@ int snd_emu10k1_mixer(struct snd_emu10k1 *emu,
                         snd_ctl_new1(&snd_emu1010_internal_clock, emu));
                 if (err < 0)
                         return err;
+                err = snd_ctl_add(card,
+                        snd_ctl_new1(&snd_emu1010_optical_out, emu));
+                if (err < 0)
+                        return err;
+                err = snd_ctl_add(card,
+                        snd_ctl_new1(&snd_emu1010_optical_in, emu));
+                if (err < 0)
+                        return err;
         }
 
         if ( emu->card_capabilities->i2c_adc) {