LXR uboot/drivers/usb/gadget/dwc2_udc_otg

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Designware DWC2 on-chip full/high speed USB device controllers
   4 * Copyright (C) 2005 for Samsung Electronics
   5 */
   6
   7#ifndef __DWC2_UDC_OTG_PRIV__
   8#define __DWC2_UDC_OTG_PRIV__
   9
  10#include <linux/errno.h>
  11#include <linux/sizes.h>
  12#include <linux/usb/ch9.h>
  13#include <linux/usb/gadget.h>
  14#include <linux/list.h>
  15#include <usb/dwc2_udc.h>
  16
  17/*-------------------------------------------------------------------------*/
  18/* DMA bounce buffer size, 16K is enough even for mass storage */
  19#define DMA_BUFFER_SIZE (16*SZ_1K)
  20
  21#define EP0_FIFO_SIZE           64
  22#define EP_FIFO_SIZE            512
  23#define EP_FIFO_SIZE2           1024
  24/* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */
  25#define DWC2_MAX_ENDPOINTS      4
  26
  27#define WAIT_FOR_SETUP          0
  28#define DATA_STATE_XMIT         1
  29#define DATA_STATE_NEED_ZLP     2
  30#define WAIT_FOR_OUT_STATUS     3
  31#define DATA_STATE_RECV         4
  32#define WAIT_FOR_COMPLETE       5
  33#define WAIT_FOR_OUT_COMPLETE   6
  34#define WAIT_FOR_IN_COMPLETE    7
  35#define WAIT_FOR_NULL_COMPLETE  8
  36
  37#define TEST_J_SEL              0x1
  38#define TEST_K_SEL              0x2
  39#define TEST_SE0_NAK_SEL        0x3
  40#define TEST_PACKET_SEL         0x4
  41#define TEST_FORCE_ENABLE_SEL   0x5
  42
  43/* ************************************************************************* */
  44/* IO
  45 */
  46
  47enum ep_type {
  48        ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
  49};
  50
  51struct dwc2_ep {
  52        struct usb_ep ep;
  53        struct dwc2_udc *dev;
  54
  55        const struct usb_endpoint_descriptor *desc;
  56        struct list_head queue;
  57        unsigned long pio_irqs;
  58        int len;
  59        void *dma_buf;
  60
  61        u8 stopped;
  62        u8 bEndpointAddress;
  63        u8 bmAttributes;
  64
  65        enum ep_type ep_type;
  66        int fifo_num;
  67};
  68
  69struct dwc2_request {
  70        struct usb_request req;
  71        struct list_head queue;
  72};
  73
  74struct dwc2_udc {
  75        struct usb_gadget gadget;
  76        struct usb_gadget_driver *driver;
  77
  78        struct dwc2_plat_otg_data *pdata;
  79
  80        int ep0state;
  81        struct dwc2_ep ep[DWC2_MAX_ENDPOINTS];
  82
  83        unsigned char usb_address;
  84
  85        unsigned req_pending:1, req_std:1;
  86};
  87
  88#define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN) == USB_DIR_IN)
  89#define ep_index(EP) ((EP)->bEndpointAddress&0xF)
  90#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
  91
  92void otg_phy_init(struct dwc2_udc *dev);
  93void otg_phy_off(struct dwc2_udc *dev);
  94
  95#endif  /* __DWC2_UDC_OTG_PRIV__ */
  96