cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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helper.h (1347B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __USBAUDIO_HELPER_H
      3#define __USBAUDIO_HELPER_H
      4
      5unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);
      6
      7void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype);
      8void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype);
      9
     10int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe,
     11		    __u8 request, __u8 requesttype, __u16 value, __u16 index,
     12		    void *data, __u16 size);
     13
     14unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip,
     15					 struct usb_host_interface *alts);
     16
     17struct usb_host_interface *
     18snd_usb_get_host_interface(struct snd_usb_audio *chip, int ifnum, int altsetting);
     19
     20/*
     21 * retrieve usb_interface descriptor from the host interface
     22 * (conditional for compatibility with the older API)
     23 */
     24#define get_iface_desc(iface)	(&(iface)->desc)
     25#define get_endpoint(alt,ep)	(&(alt)->endpoint[ep].desc)
     26#define get_ep_desc(ep)		(&(ep)->desc)
     27#define get_cfg_desc(cfg)	(&(cfg)->desc)
     28
     29#define snd_usb_get_speed(dev) ((dev)->speed)
     30
     31static inline int snd_usb_ctrl_intf(struct snd_usb_audio *chip)
     32{
     33	return get_iface_desc(chip->ctrl_intf)->bInterfaceNumber;
     34}
     35
     36/* in validate.c */
     37bool snd_usb_validate_audio_desc(void *p, int protocol);
     38bool snd_usb_validate_midi_desc(void *p);
     39
     40#endif /* __USBAUDIO_HELPER_H */