1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com
4 * Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
7 #define LOG_CATEGORY UCLASS_USB_GADGET_GENERIC
11 #include <dm/device-internal.h>
12 #include <linux/usb/gadget.h>
14 #if CONFIG_IS_ENABLED(DM_USB_GADGET)
15 #define MAX_UDC_DEVICES 4
16 static struct udevice *dev_array[MAX_UDC_DEVICES];
17 int usb_gadget_initialize(int index)
20 struct udevice *dev = NULL;
22 if (index < 0 || index >= ARRAY_SIZE(dev_array))
26 ret = uclass_get_device_by_seq(UCLASS_USB_GADGET_GENERIC, index, &dev);
28 ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, index, &dev);
30 pr_err("No USB device found\n");
34 dev_array[index] = dev;
38 int usb_gadget_release(int index)
40 #if CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)
42 if (index < 0 || index >= ARRAY_SIZE(dev_array))
45 ret = device_remove(dev_array[index], DM_REMOVE_NORMAL);
47 dev_array[index] = NULL;
54 int usb_gadget_handle_interrupts(int index)
56 if (index < 0 || index >= ARRAY_SIZE(dev_array))
58 return dm_usb_gadget_handle_interrupts(dev_array[index]);
62 UCLASS_DRIVER(usb_gadget_generic) = {
63 .id = UCLASS_USB_GADGET_GENERIC,
65 .flags = DM_UC_FLAG_SEQ_ALIAS,