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author | Geoffrey D. Bennett <g@b4.vu> | 2023-12-24 20:26:43 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2023-12-29 15:41:22 +0100 |
commit | 7f4d8dbea2156802cc4cef74faa26eba8a7aa7d6 (patch) | |
tree | e2abb47f3085b7439da1eed7f431aafe15d57039 /sound/usb/mixer_scarlett2.c | |
parent | ALSA: scarlett2: Add check for config_item presence (diff) | |
download | linux-7f4d8dbea2156802cc4cef74faa26eba8a7aa7d6.tar.xz linux-7f4d8dbea2156802cc4cef74faa26eba8a7aa7d6.zip |
ALSA: scarlett2: Refactor scarlett2_usb_set_config()
Pull out common code from scarlett2_usb_set_config() and create
scarlett2_usb_set_data() and scarlett2_usb_activate_config().
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/257eca0b07708339133f916930e388057d116eb8.1703444932.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer_scarlett2.c')
-rw-r--r-- | sound/usb/mixer_scarlett2.c | 57 |
1 files changed, 41 insertions, 16 deletions
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index ad92c3d1f8f5..9284c6edd4a4 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -1583,20 +1583,52 @@ static void scarlett2_config_save_work(struct work_struct *work) scarlett2_config_save(private->mixer); } -/* Send a USB message to set a SCARLETT2_CONFIG_* parameter */ -static int scarlett2_usb_set_config( +/* Send a SCARLETT2_USB_SET_DATA command. + * offset: location in the device's data space + * size: size in bytes of the value (1, 2, 4) + */ +static int scarlett2_usb_set_data( struct usb_mixer_interface *mixer, - int config_item_num, int index, int value) + int offset, int size, int value) { struct scarlett2_data *private = mixer->private_data; - const struct scarlett2_config *config_item = - &private->config_set->items[config_item_num]; struct { __le32 offset; - __le32 bytes; + __le32 size; __le32 value; } __packed req; - __le32 req2; + + req.offset = cpu_to_le32(offset); + req.size = cpu_to_le32(size); + req.value = cpu_to_le32(value); + return scarlett2_usb(private->mixer, SCARLETT2_USB_SET_DATA, + &req, sizeof(u32) * 2 + size, NULL, 0); +} + +/* Send a SCARLETT2_USB_DATA_CMD command. + * Configuration changes require activation with this after they have + * been uploaded by a previous SCARLETT2_USB_SET_DATA. + * The value for activate needed is determined by the configuration + * item. + */ +static int scarlett2_usb_activate_config( + struct usb_mixer_interface *mixer, int activate) +{ + __le32 req; + + req = cpu_to_le32(activate); + return scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD, + &req, sizeof(req), NULL, 0); +} + +/* Send USB messages to set a SCARLETT2_CONFIG_* parameter */ +static int scarlett2_usb_set_config( + struct usb_mixer_interface *mixer, + int config_item_num, int index, int value) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_config *config_item = + &private->config_set->items[config_item_num]; int offset, size; int err; @@ -1638,19 +1670,12 @@ static int scarlett2_usb_set_config( } /* Send the configuration parameter data */ - req.offset = cpu_to_le32(offset); - req.bytes = cpu_to_le32(size); - req.value = cpu_to_le32(value); - err = scarlett2_usb(mixer, SCARLETT2_USB_SET_DATA, - &req, sizeof(u32) * 2 + size, - NULL, 0); + err = scarlett2_usb_set_data(mixer, offset, size, value); if (err < 0) return err; /* Activate the change */ - req2 = cpu_to_le32(config_item->activate); - err = scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD, - &req2, sizeof(req2), NULL, 0); + err = scarlett2_usb_activate_config(mixer, config_item->activate); if (err < 0) return err; |