diff options
| -rw-r--r-- | firmware/drivers/audio/wm8975.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/firmware/drivers/audio/wm8975.c b/firmware/drivers/audio/wm8975.c index 3fcb01e..45fa3ff 100644 --- a/firmware/drivers/audio/wm8975.c +++ b/firmware/drivers/audio/wm8975.c @@ -319,6 +319,22 @@ void audiohw_set_recvol(int left, int right, int type) void audiohw_set_monitor(bool enable) { - (void)enable; + if (enable) { + // set volume to 0 dB + wm8975_regs[LOUTMIX1] &= ~LOUTMIX1_LI2LOVOL_MASK; + wm8975_regs[LOUTMIX1] |= LOUTMIX1_LI2LOVOL(2); + wm8975_regs[ROUTMIX2] &= ~ROUTMIX2_RI2ROVOL_MASK; + wm8975_regs[ROUTMIX2] |= ROUTMIX2_RI2ROVOL(2); + // set mux to line input + wm8975_write_and(LOUTMIX1, ~7); + wm8975_write_and(ROUTMIX1, ~7); + // enable bypass + wm8975_write_or(LOUTMIX1, LOUTMIX1_LI2LO); + wm8975_write_or(ROUTMIX2, ROUTMIX2_RI2RO); + } else { + // disable bypass + wm8975_write_and(LOUTMIX1, ~LOUTMIX1_LI2LO); + wm8975_write_and(ROUTMIX2, ~ROUTMIX2_RI2RO); + } } #endif /* HAVE_RECORDING */ |