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ALSA: usb-audio: scarlett2: Improve driver startup messages 

commit 265d1a90e4fb6d3264d8122fbd10760e5e733be6 upstream.

Add separate init function to call the existing controls_create
function so a custom error can be displayed if initialisation fails.

Use info level instead of error for notifications.

Display the VID/PID so device_setup is targeted to the right device.

Display "enabled" message to easily confirm that the driver is loaded.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/b5d140c65f640faf2427e085fbbc0297b32e5fce.1621584566.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geoffrey D. Bennett 2021-05-21 17:50:13 +09:30 committed by Greg Kroah-Hartman
parent 26314d2784
commit 5c81a4e24c
3 changed files with 52 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sound/usb/mixer_quirks.c
View File

@ -2268,7 +2268,7 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
case USB_ID(0x1235, 0x8203): /* Focusrite Scarlett 6i6 2nd Gen */
case USB_ID(0x1235, 0x8204): /* Focusrite Scarlett 18i8 2nd Gen */
case USB_ID(0x1235, 0x8201): /* Focusrite Scarlett 18i20 2nd Gen */
err = snd_scarlett_gen2_controls_create(mixer);
err = snd_scarlett_gen2_init(mixer);
break;
case USB_ID(0x041e, 0x323b): /* Creative Sound Blaster E1 */

79
sound/usb/mixer_scarlett_gen2.c
View File

@ -1997,38 +1997,11 @@ static int scarlett2_mixer_status_create(struct usb_mixer_interface *mixer)
return usb_submit_urb(mixer->urb, GFP_KERNEL);
}
/* Entry point */
int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer)
int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer,
const struct scarlett2_device_info *info)
{
const struct scarlett2_device_info *info;
int err;
/* only use UAC_VERSION_2 */
if (!mixer->protocol)
return 0;
switch (mixer->chip->usb_id) {
case USB_ID(0x1235, 0x8203):
info = &s6i6_gen2_info;
break;
case USB_ID(0x1235, 0x8204):
info = &s18i8_gen2_info;
break;
case USB_ID(0x1235, 0x8201):
info = &s18i20_gen2_info;
break;
default: /* device not (yet) supported */
return -EINVAL;
}
if (!(mixer->chip->setup & SCARLETT2_ENABLE)) {
usb_audio_err(mixer->chip,
"Focusrite Scarlett Gen 2 Mixer Driver disabled; "
"use options snd_usb_audio device_setup=1 "
"to enable and report any issues to g@b4.vu");
return 0;
}
/* Initialise private data, routing, sequence number */
err = scarlett2_init_private(mixer, info);
if (err < 0)
@ -2073,3 +2046,51 @@ int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer)
return 0;
}
int snd_scarlett_gen2_init(struct usb_mixer_interface *mixer)
{
struct snd_usb_audio *chip = mixer->chip;
const struct scarlett2_device_info *info;
int err;
/* only use UAC_VERSION_2 */
if (!mixer->protocol)
return 0;
switch (chip->usb_id) {
case USB_ID(0x1235, 0x8203):
info = &s6i6_gen2_info;
break;
case USB_ID(0x1235, 0x8204):
info = &s18i8_gen2_info;
break;
case USB_ID(0x1235, 0x8201):
info = &s18i20_gen2_info;
break;
default: /* device not (yet) supported */
return -EINVAL;
}
if (!(chip->setup & SCARLETT2_ENABLE)) {
usb_audio_info(chip,
"Focusrite Scarlett Gen 2 Mixer Driver disabled; "
"use options snd_usb_audio vid=0x%04x pid=0x%04x "
"device_setup=1 to enable and report any issues "
"to g@b4.vu",
USB_ID_VENDOR(chip->usb_id),
USB_ID_PRODUCT(chip->usb_id));
return 0;
}
usb_audio_info(chip,
"Focusrite Scarlett Gen 2 Mixer Driver enabled pid=0x%04x",
USB_ID_PRODUCT(chip->usb_id));
err = snd_scarlett_gen2_controls_create(mixer, info);
if (err < 0)
usb_audio_err(mixer->chip,
"Error initialising Scarlett Mixer Driver: %d",
err);
return err;
}

2
sound/usb/mixer_scarlett_gen2.h
View File

@ -2,6 +2,6 @@
#ifndef __USB_MIXER_SCARLETT_GEN2_H
#define __USB_MIXER_SCARLETT_GEN2_H
int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer);
int snd_scarlett_gen2_init(struct usb_mixer_interface *mixer);
#endif /* __USB_MIXER_SCARLETT_GEN2_H */