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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2022 Google Corp.
*
* Author:
* Howard.Yen <howardyen@google.com>
*/
#include <sound/pcm.h>
#include <uapi/sound/asound.h>
#include "usbaudio.h"
#include "card.h"
#include "aoc_usb.h"
static int snd_usb_audio_vendor_connect(struct usb_interface *intf)
{
struct usb_device *udev;
struct xhci_hcd *xhci;
if (!intf) {
pr_err("%s: Invalid parameter\n", __func__);
return -EINVAL;
}
udev = interface_to_usbdev(intf);
xhci = get_xhci_hcd_by_udev(udev);
xhci_set_offload_state(xhci, true);
return 0;
}
static void snd_usb_audio_vendor_disconnect(struct usb_interface *intf)
{
struct usb_device *udev;
struct xhci_hcd *xhci;
if (!intf) {
pr_err("%s: Invalid parameter\n", __func__);
return;
}
udev = interface_to_usbdev(intf);
xhci = get_xhci_hcd_by_udev(udev);
xhci_set_offload_state(xhci, false);
return;
}
static int snd_usb_audio_vendor_set_interface(struct usb_device *udev,
struct usb_host_interface *alts,
int iface, int alt)
{
return 0;
}
static int snd_usb_audio_vendor_set_rate(struct usb_interface *intf, int iface, int rate,
int alt)
{
return 0;
}
static int snd_usb_audio_vendor_set_pcm_buf(struct usb_device *udev, int iface)
{
return 0;
}
static int snd_usb_audio_vendor_set_pcm_intf(struct usb_interface *intf, int iface, int alt,
int direction)
{
return 0;
}
static int snd_usb_audio_vendor_set_pcm_connection(struct usb_device *udev,
enum snd_vendor_pcm_open_close onoff,
int direction)
{
return 0;
}
static int snd_usb_audio_vendor_set_pcm_binterval(struct audioformat *fp,
struct audioformat *found,
int *cur_attr, int *attr)
{
return 0;
}
static int snd_usb_audio_vendor_usb_add_ctls(struct snd_usb_audio *chip)
{
return 0;
}
static struct snd_usb_audio_vendor_ops snd_usb_ops = {
.connect = snd_usb_audio_vendor_connect,
.disconnect = snd_usb_audio_vendor_disconnect,
.set_interface = snd_usb_audio_vendor_set_interface,
.set_rate = snd_usb_audio_vendor_set_rate,
.set_pcm_buf = snd_usb_audio_vendor_set_pcm_buf,
.set_pcm_intf = snd_usb_audio_vendor_set_pcm_intf,
.set_pcm_connection = snd_usb_audio_vendor_set_pcm_connection,
.set_pcm_binterval = snd_usb_audio_vendor_set_pcm_binterval,
.usb_add_ctls = snd_usb_audio_vendor_usb_add_ctls,
};
int snd_usb_audio_vendor_helper_init(void)
{
return snd_vendor_set_ops(&snd_usb_ops);
}
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