[ALSA] snd-emu10k1:Support for ADAT and S/PDIF.

Patch submitted by Ctirad Fertr
<c.fertr@volny.cz>

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

2 files changed, 49 insertions, 9 deletions

diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 800d6348de71..b985e660c60b 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -872,8 +872,8 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 * emu)
         snd_emu1010_fpga_read(emu, EMU_HANA_OPTION_CARDS, &reg );
         snd_printk(KERN_INFO "emu1010: Card options=0x%x\n",reg);
         snd_emu1010_fpga_read(emu, EMU_HANA_OPTICAL_TYPE, &tmp ); 
-        /* ADAT input. */
-        snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, 0x01 );
+        /* Optical -> ADAT I/O  */
+        snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, EMU_HANA_OPTICAL_IN_ADAT | EMU_HANA_OPTICAL_OUT_ADAT );
         snd_emu1010_fpga_read(emu, EMU_HANA_ADC_PADS, &tmp );
         /* Set no attenuation on Audio Dock pads. */
         snd_emu1010_fpga_write(emu, EMU_HANA_ADC_PADS, 0x00 );
@@ -1150,7 +1150,7 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 * emu)
         emu->emu1010.output_source[23] = 28;
 
         /* TEMP: Select SPDIF in/out */
-        snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, 0x0); /* Output spdif */
+        //snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, 0x0); /* Output spdif */
 
         /* TEMP: Select 48kHz SPDIF out */
         snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, 0x0); /* Mute all */
diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c
index 6c26319430d7..692b871bff57 100644
--- a/sound/pci/emu10k1/emumixer.c
+++ b/sound/pci/emu10k1/emumixer.c
@@ -501,17 +501,19 @@ static struct snd_kcontrol_new snd_emu1010_dac_pads[] __devinitdata = {
 static int snd_emu1010_internal_clock_info(struct snd_kcontrol *kcontrol,
                                           struct snd_ctl_elem_info *uinfo)
 {
-        static char *texts[2] = {
-                "44100", "48000"
+        static char *texts[4] = {
+                "44100", "48000", "SPDIF", "ADAT"
         };
-
+                
         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;
+        uinfo->value.enumerated.items = 4;
+        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
+                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
         return 0;
+        
+        
 }
 
 static int snd_emu1010_internal_clock_get(struct snd_kcontrol *kcontrol,
@@ -569,6 +571,44 @@ static int snd_emu1010_internal_clock_put(struct snd_kcontrol *kcontrol,
                         /* Unmute all */
                         snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE );
                         break;
+                        
+                case 2: /* Take clock from S/PDIF IN */
+                        /* Mute all */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_MUTE );
+                        /* Default fallback clock 48kHz */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_DEFCLOCK, EMU_HANA_DEFCLOCK_48K );
+                        /* Word Clock source, sync to S/PDIF input */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_WCLOCK,
+                                EMU_HANA_WCLOCK_HANA_SPDIF_IN | EMU_HANA_WCLOCK_1X );
+                        /* Set LEDs on Audio Dock */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_LEDS_2,
+                                EMU_HANA_DOCK_LEDS_2_EXT | EMU_HANA_DOCK_LEDS_2_LOCK );
+                        /* FIXME: We should set EMU_HANA_DOCK_LEDS_2_LOCK only when clock signal is present and valid */        
+                        /* Allow DLL to settle */
+                        msleep(10);
+                        /* Unmute all */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE );
+                        break;
+                
+                case 3:                         
+                        /* Take clock from ADAT IN */
+                        /* Mute all */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_MUTE );
+                        /* Default fallback clock 48kHz */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_DEFCLOCK, EMU_HANA_DEFCLOCK_48K );
+                        /* Word Clock source, sync to ADAT input */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_WCLOCK,
+                                EMU_HANA_WCLOCK_HANA_ADAT_IN | EMU_HANA_WCLOCK_1X );
+                        /* Set LEDs on Audio Dock */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_LEDS_2, EMU_HANA_DOCK_LEDS_2_EXT | EMU_HANA_DOCK_LEDS_2_LOCK );
+                        /* FIXME: We should set EMU_HANA_DOCK_LEDS_2_LOCK only when clock signal is present and valid */        
+                        /* Allow DLL to settle */
+                        msleep(10);
+                        /*   Unmute all */
+                        snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE );
+                         
+                        
+                        break;          
                 }
         }
         return change;