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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com
* Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
*/
#define LOG_CATEGORY UCLASS_USB_GADGET_GENERIC
#include <dm.h>
#include <dm/device-internal.h>
#include <linux/printk.h>
#include <linux/usb/gadget.h>
#if CONFIG_IS_ENABLED(DM_USB_GADGET)
int udc_device_get_by_index(int index, struct udevice **udev)
{
struct udevice *dev = NULL;
int ret;
ret = uclass_get_device_by_seq(UCLASS_USB_GADGET_GENERIC, index, &dev);
if (!ret && dev) {
*udev = dev;
return 0;
}
ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, index, &dev);
if (!ret && dev) {
*udev = dev;
return 0;
}
pr_err("No USB device found\n");
return -ENODEV;
}
int udc_device_put(struct udevice *udev)
{
#if CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)
return device_remove(udev, DM_REMOVE_NORMAL);
#else
return -ENOSYS;
#endif
}
#else
/* Backwards hardware compatibility -- switch to DM_USB_GADGET */
static int legacy_index;
int udc_device_get_by_index(int index, struct udevice **udev)
{
legacy_index = index;
return board_usb_init(index, USB_INIT_DEVICE);
}
int udc_device_put(struct udevice *udev)
{
return board_usb_cleanup(legacy_index, USB_INIT_DEVICE);
}
#endif
#if CONFIG_IS_ENABLED(DM)
UCLASS_DRIVER(usb_gadget_generic) = {
.id = UCLASS_USB_GADGET_GENERIC,
.name = "usb",
.flags = DM_UC_FLAG_SEQ_ALIAS,
};
#endif
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