fcc2cc1f35
snd_usb_pipe_sanity_check() is a great function, so let's move it into the USB core so that other parts of the kernel, including the USB core, can call it. Name it usb_pipe_type_check() to match the existing usb_urb_ep_type_check() call, which now uses this function. Cc: Jaroslav Kysela <perex@perex.cz> Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org> Cc: Eli Billauer <eli.billauer@gmail.com> Cc: Emiliano Ingrassia <ingrassia@epigenesys.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Alexander Tsoy <alexander@tsoy.me> Cc: "Geoffrey D. Bennett" <g@b4.vu> Cc: Jussi Laako <jussi@sonarnerd.net> Cc: Nick Kossifidis <mickflemm@gmail.com> Cc: Dmitry Panchenko <dmitry@d-systems.ee> Cc: Chris Wulff <crwulff@gmail.com> Cc: Jesus Ramos <jesus-ramos@live.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20200914153756.3412156-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __USBAUDIO_HELPER_H
|
|
#define __USBAUDIO_HELPER_H
|
|
|
|
unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);
|
|
|
|
void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype);
|
|
void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype);
|
|
|
|
int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe,
|
|
__u8 request, __u8 requesttype, __u16 value, __u16 index,
|
|
void *data, __u16 size);
|
|
|
|
unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip,
|
|
struct usb_host_interface *alts);
|
|
|
|
/*
|
|
* retrieve usb_interface descriptor from the host interface
|
|
* (conditional for compatibility with the older API)
|
|
*/
|
|
#define get_iface_desc(iface) (&(iface)->desc)
|
|
#define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc)
|
|
#define get_ep_desc(ep) (&(ep)->desc)
|
|
#define get_cfg_desc(cfg) (&(cfg)->desc)
|
|
|
|
#define snd_usb_get_speed(dev) ((dev)->speed)
|
|
|
|
static inline int snd_usb_ctrl_intf(struct snd_usb_audio *chip)
|
|
{
|
|
return get_iface_desc(chip->ctrl_intf)->bInterfaceNumber;
|
|
}
|
|
|
|
/* in validate.c */
|
|
bool snd_usb_validate_audio_desc(void *p, int protocol);
|
|
bool snd_usb_validate_midi_desc(void *p);
|
|
|
|
#endif /* __USBAUDIO_HELPER_H */
|