diff options
| author | Geoffrey D. Bennett <g@b4.vu> | 2021-06-22 03:39:06 +0930 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-06-22 21:35:58 +0200 |
| commit | 1f7fa6e5afbf20a28ce7c20149825946f25c1059 (patch) | |
| tree | 808a5bf7f6ba23661177a5067179a091bf9a350a /sound/usb/mixer_scarlett_gen2.c | |
| parent | 0f7c956533680d5c905d256044d7b23f180dc230 (diff) | |
ALSA: usb-audio: scarlett2: Add usb_tx/rx functions
Pull out snd_usb_ctl_msg() calls from scarlett2_usb() and put into
scarlett2_usb_tx() and scarlett2_usb_rx() functions.
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/720d1d6f227fc8f5d7d6191a8de62db796940235.1624294591.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer_scarlett_gen2.c')
| -rw-r--r-- | sound/usb/mixer_scarlett_gen2.c | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index 2e1937b072ee..6b77582d8e3d 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -453,8 +453,8 @@ static int scarlett2_get_port_start_num(const struct scarlett2_ports *ports, #define SCARLETT2_USB_NOTIFY_MONITOR 0x00400000 /* Commands for sending/receiving requests/responses */ -#define SCARLETT2_USB_VENDOR_SPECIFIC_CMD_REQ 2 -#define SCARLETT2_USB_VENDOR_SPECIFIC_CMD_RESP 3 +#define SCARLETT2_USB_CMD_REQ 2 +#define SCARLETT2_USB_CMD_RESP 3 #define SCARLETT2_USB_INIT_SEQ 0x00000000 #define SCARLETT2_USB_GET_METER 0x00001001 @@ -576,12 +576,31 @@ static void scarlett2_fill_request_header(struct scarlett2_data *private, req->pad = 0; } +static int scarlett2_usb_tx(struct usb_device *dev, int interface, + void *buf, u16 size) +{ + return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + SCARLETT2_USB_CMD_REQ, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + 0, interface, buf, size); +} + +static int scarlett2_usb_rx(struct usb_device *dev, int interface, + u32 usb_req, void *buf, u16 size) +{ + return snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + usb_req, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + 0, interface, buf, size); +} + /* Send a proprietary format request to the Scarlett interface */ static int scarlett2_usb( struct usb_mixer_interface *mixer, u32 cmd, void *req_data, u16 req_size, void *resp_data, u16 resp_size) { struct scarlett2_data *private = mixer->private_data; + struct usb_device *dev = mixer->chip->dev; u16 req_buf_size = sizeof(struct scarlett2_usb_packet) + req_size; u16 resp_buf_size = sizeof(struct scarlett2_usb_packet) + resp_size; struct scarlett2_usb_packet *req, *resp = NULL; @@ -608,14 +627,8 @@ static int scarlett2_usb( if (req_size) memcpy(req->data, req_data, req_size); - err = snd_usb_ctl_msg(mixer->chip->dev, - usb_sndctrlpipe(mixer->chip->dev, 0), - SCARLETT2_USB_VENDOR_SPECIFIC_CMD_REQ, - USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - 0, - private->bInterfaceNumber, - req, - req_buf_size); + err = scarlett2_usb_tx(dev, private->bInterfaceNumber, + req, req_buf_size); if (err != req_buf_size) { usb_audio_err( @@ -628,14 +641,9 @@ static int scarlett2_usb( /* send a second message to get the response */ - err = snd_usb_ctl_msg(mixer->chip->dev, - usb_rcvctrlpipe(mixer->chip->dev, 0), - SCARLETT2_USB_VENDOR_SPECIFIC_CMD_RESP, - USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - 0, - private->bInterfaceNumber, - resp, - resp_buf_size); + err = scarlett2_usb_rx(dev, private->bInterfaceNumber, + SCARLETT2_USB_CMD_RESP, + resp, resp_buf_size); /* validate the response */ |