From: "Geoffrey D. Bennett" g@b4.vu
[ Upstream commit be157c4683a91857d3fdf319117c9b9dc6e8a849 ]
The meanings of the raw_auto_gain_status values were originally guessed through experimentation, but the official names have now been discovered. Update the autogain status control strings accordingly.
Signed-off-by: Geoffrey D. Bennett g@b4.vu Fixes: 0a995e38dc44 ("ALSA: scarlett2: Add support for software-controllable input gain") Signed-off-by: Takashi Iwai tiwai@suse.de Message-ID: 8bd12a5e7dc714801dd9887c4bc5cb35c384e27c.1710047969.git.g@b4.vu Signed-off-by: Sasha Levin sashal@kernel.org --- sound/usb/mixer_scarlett2.c | 62 ++++++++++++++++++++----------------- 1 file changed, 34 insertions(+), 28 deletions(-)
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index bce69a78c5052..3815ce1d216e6 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -284,14 +284,22 @@ static const char *const scarlett2_dim_mute_names[SCARLETT2_DIM_MUTE_COUNT] = { "Mute Playback Switch", "Dim Playback Switch" };
-/* Autogain Status Values */ -enum { - SCARLETT2_AUTOGAIN_STATUS_STOPPED, - SCARLETT2_AUTOGAIN_STATUS_RUNNING, - SCARLETT2_AUTOGAIN_STATUS_FAILED, - SCARLETT2_AUTOGAIN_STATUS_CANCELLED, - SCARLETT2_AUTOGAIN_STATUS_UNKNOWN, - SCARLETT2_AUTOGAIN_STATUS_COUNT +/* The autogain_status is set based on the autogain_switch and + * raw_autogain_status values. + * + * If autogain_switch is set, autogain_status is set to 0 (Running). + * The other status values are from the raw_autogain_status value + 1. + */ +static const char *const scarlett2_autogain_status_texts[] = { + "Running", + "Success", + "SuccessDRover", + "WarnMinGainLimit", + "FailDRunder", + "FailMaxGainLimit", + "FailClipped", + "Cancelled", + "Invalid" };
/* Power Status Values */ @@ -2835,9 +2843,9 @@ static int scarlett2_autogain_is_running(struct scarlett2_data *private) { int i;
+ /* autogain_status[] is 0 if autogain is running */ for (i = 0; i < private->info->gain_input_count; i++) - if (private->autogain_status[i] == - SCARLETT2_AUTOGAIN_STATUS_RUNNING) + if (!private->autogain_status[i]) return 1;
return 0; @@ -2867,25 +2875,25 @@ static int scarlett2_update_autogain(struct usb_mixer_interface *mixer) return err;
/* Translate autogain_switch and raw_autogain_status into - * autogain_status + * autogain_status. + * + * When autogain_switch[] is set, the status is the first + * element in scarlett2_autogain_status_texts[] (Running). The + * subsequent elements correspond to the status value from the + * device (raw_autogain_status[]) + 1. The last element is + * "Invalid", in case the device reports a status outside the + * range of scarlett2_autogain_status_texts[]. */ for (i = 0; i < info->gain_input_count; i++) if (private->autogain_switch[i]) + private->autogain_status[i] = 0; + else if (raw_autogain_status[i] < + ARRAY_SIZE(scarlett2_autogain_status_texts) - 1) private->autogain_status[i] = - SCARLETT2_AUTOGAIN_STATUS_RUNNING; - else if (raw_autogain_status[i] == 0) - private->autogain_status[i] = - SCARLETT2_AUTOGAIN_STATUS_STOPPED; - else if (raw_autogain_status[i] >= 2 && - raw_autogain_status[i] <= 5) - private->autogain_status[i] = - SCARLETT2_AUTOGAIN_STATUS_FAILED; - else if (raw_autogain_status[i] == 6) - private->autogain_status[i] = - SCARLETT2_AUTOGAIN_STATUS_CANCELLED; + raw_autogain_status[i] + 1; else private->autogain_status[i] = - SCARLETT2_AUTOGAIN_STATUS_UNKNOWN; + ARRAY_SIZE(scarlett2_autogain_status_texts) - 1;
return 0; } @@ -3111,12 +3119,10 @@ static int scarlett2_autogain_switch_ctl_put( static int scarlett2_autogain_status_ctl_info( struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo) { - static const char *const values[SCARLETT2_AUTOGAIN_STATUS_COUNT] = { - "Stopped", "Running", "Failed", "Cancelled", "Unknown" - }; - return snd_ctl_enum_info( - uinfo, 1, SCARLETT2_AUTOGAIN_STATUS_COUNT, values); + uinfo, 1, + ARRAY_SIZE(scarlett2_autogain_status_texts), + scarlett2_autogain_status_texts); }
static const struct snd_kcontrol_new scarlett2_autogain_switch_ctl = {