| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Minor numbers for the sound driver. |
| 3 | * |
| 4 | * Unfortunately Creative called the codec chip of SB as a DSP. For this |
| 5 | * reason the /dev/dsp is reserved for digitized audio use. There is a |
| 6 | * device for true DSP processors but it will be called something else. |
| 7 | * In v3.0 it's /dev/sndproc but this could be a temporary solution. |
| 8 | */ |
| 9 | |
| 10 | #define SND_NDEVS 256 /* Number of supported devices */ |
| 11 | #define SND_DEV_CTL 0 /* Control port /dev/mixer */ |
| 12 | #define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM |
| 13 | synthesizer and MIDI output) */ |
| 14 | #define SND_DEV_MIDIN 2 /* Raw midi access */ |
| 15 | #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ |
| 16 | #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ |
| 17 | #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ |
| 18 | #define SND_DEV_STATUS 6 /* /dev/sndstat */ |
| 19 | /* #7 not in use now. Was in 2.4. Free for use after v3.0. */ |
| 20 | #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ |
| 21 | #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ |
| 22 | #define SND_DEV_PSS SND_DEV_SNDPROC |
| 23 | |
| 24 | #define DSP_DEFAULT_SPEED 8000 |
| 25 | |
| 26 | #define ON 1 |
| 27 | #define OFF 0 |
| 28 | |
| 29 | #define MAX_AUDIO_DEV 5 |
| 30 | #define MAX_MIXER_DEV 2 |
| 31 | #define MAX_SYNTH_DEV 3 |
| 32 | #define MAX_MIDI_DEV 6 |
| 33 | #define MAX_TIMER_DEV 3 |