diff options
| author | Geoffrey D. Bennett <g@b4.vu> | 2023-12-26 21:08:34 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-12-29 17:52:13 +0300 |
| commit | 166e1dfb752665226ab482b62a94c274ec2dea17 (patch) | |
| tree | b4e7c923c61942dc368f46bb27b3e966666bed4f /sound/usb | |
| parent | c6c9f0cf9dba7e86f1f6cca658bb6b86c5d02530 (diff) | |
| download | linux-166e1dfb752665226ab482b62a94c274ec2dea17.tar.xz | |
ALSA: scarlett2: Add support for DSP mux channels
The DSP mux channels in the Scarlett 4th Gen appear as
SCARLETT2_PORT_TYPE_MIX ports but do not have corresponding mixer
controls. Add a dsp_count option to the device info struct to exclude
those DSP channels from the num_mix_in/num_mix_out counts.
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/b78bdb1a7624d55783f5bf0e1ffbfa47a9e9a800.1703612638.git.g@b4.vu
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/mixer_scarlett2.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index 13f65d963778..59f178dc8050 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -706,6 +706,9 @@ struct scarlett2_device_info { */ u8 direct_monitor; + /* the number of DSP channels */ + u8 dsp_count; + /* remap analogue outputs; 18i8 Gen 3 has "line 3/4" connected * internally to the analogue 7/8 outputs */ @@ -5827,12 +5830,17 @@ static void scarlett2_count_io(struct scarlett2_data *private) private->num_mux_srcs = srcs; private->num_mux_dsts = dsts; - /* Mixer inputs are mux outputs and vice versa */ + /* Mixer inputs are mux outputs and vice versa. + * Scarlett Gen 4 DSP I/O uses SCARLETT2_PORT_TYPE_MIX but + * doesn't have mixer controls. + */ private->num_mix_in = - port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT]; + port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT] - + info->dsp_count; private->num_mix_out = - port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN]; + port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN] - + info->dsp_count; /* Number of analogue line outputs */ private->num_line_out = |