c500e75417
- Add pulseaudio in system mode - Add alsactl restore with correct mixer state from Aether - Add x6200-control package (I2C hardware control library) - Audio chain: pulseaudio -> x6200_control_init -> voice_rec -> speaker
60 lines
1.6 KiB
Bash
Executable File
60 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# S70mestre-audio — X6200 audio hardware init
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#
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# Initializes the X6200's audio routing via I2C:
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# 1. Calls x6200_control_init() to establish MCU state
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# 2. Sets speaker volume
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# 3. Switches audio routing from RX-radio to SoC DAC (voice_rec)
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#
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# Must run after S50pulseaudio (pulseaudio must hold PCM open first
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# to keep ALSA clocks active).
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#
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# The voice_rec bit (0x00008 in sple_atue_trx register, cmd 12)
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# switches the X6200's internal audio mux from the RF receiver
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# to the SoC DAC — allowing piHPSDR/aplay to be heard in the speaker.
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VOLUME=50
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do_init() {
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python3 << EOF
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import ctypes
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lib = ctypes.CDLL("libaether_x6200_control.so")
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lib.x6200_control_init.restype = ctypes.c_bool
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lib.x6200_control_rxvol_set.argtypes = [ctypes.c_uint8]
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lib.x6200_control_spmode_set.argtypes = [ctypes.c_bool]
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if not lib.x6200_control_init():
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raise SystemExit("x6200_control_init() failed")
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lib.x6200_control_rxvol_set($VOLUME)
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lib.x6200_control_spmode_set(False) # Speaker mode (not headphone)
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EOF
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}
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do_voice_rec() {
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# Switch audio routing: RX-radio -> SoC DAC (voice_rec bit = 0x00008)
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i2ctransfer -y 0 w6@0x72 0x00 0x30 0x08 0x00 0x00 0x00
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}
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case "$1" in
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start)
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echo "Starting mestre-audio"
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do_init && do_voice_rec && echo "OK" || echo "FAILED"
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;;
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stop)
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echo "Stopping mestre-audio"
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# Switch back to RX-radio audio
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i2ctransfer -y 0 w6@0x72 0x00 0x30 0x00 0x00 0x00 0x00
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echo "OK"
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;;
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restart)
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$0 stop
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sleep 1
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$0 start
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;;
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*)
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echo "Usage: $0 {start|stop|restart}" >&2
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exit 1
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;;
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esac
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