src/conf/pcm/iec958.conf

   1 #
   2 #  Hardware output from iec958
   3 #
   4
   5 pcm.!iec958 {
   6         @args [ CARD DEV AES0 AES1 AES2 AES3 ]
   7         @args.CARD {
   8                 type string
   9                 default {
  10                         @func getenv
  11                         vars [
  12                                 ALSA_IEC958_CARD
  13                                 ALSA_PCM_CARD
  14                                 ALSA_CARD
  15                         ]
  16                         default {
  17                                 @func refer
  18                                 name defaults.pcm.iec958.card
  19                         }
  20                 }
  21         }
  22         @args.DEV {
  23                 type integer
  24                 default {
  25                         @func igetenv
  26                         vars [
  27                                 ALSA_IEC958_DEVICE
  28                         ]
  29                         default {
  30                                 @func refer
  31                                 name defaults.pcm.iec958.device
  32                         }
  33                 }
  34         }
  35         @args.AES0 {
  36                 type integer
  37                 # consumer, not-copyright, emphasis-none, mode=0
  38                 default 0x04
  39         }
  40         @args.AES1 {
  41                 type integer
  42                 # original, PCM coder
  43                 default 0x82
  44         }
  45         @args.AES2 {
  46                 type integer
  47                 # source and channel
  48                 default 0x00
  49         }
  50         @args.AES3 {
  51                 type integer
  52                 # fs=48000Hz, clock accuracy=1000ppm
  53                 default 0x02
  54         }
  55         type empty
  56         slave.pcm {
  57                 @func refer
  58                 name {
  59                         @func concat
  60                         strings [
  61                                 "cards."
  62                                 {
  63                                         @func card_driver
  64                                         card $CARD
  65                                 }
  66                                 ".pcm.iec958." $DEV ":"
  67                                 "CARD=" $CARD ","
  68                                 "AES0=" $AES0 ","
  69                                 "AES1=" $AES1 ","
  70                                 "AES2=" $AES2 ","
  71                                 "AES3=" $AES3
  72                         ]
  73                 }
  74         }
  75         hint {
  76                 show {
  77                         @func refer
  78                         name defaults.namehint.basic
  79                 }
  80                 description "IEC958 (S/PDIF) Digital Audio Output"
  81                 device $DEV
  82         }
  83 }