LXR uboot/drivers/usb/gadget/dwc2_udc_otg

   1/*
   2 * Designware DWC2 on-chip full/high speed USB device controllers
   3 * Copyright (C) 2005 for Samsung Electronics
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#ifndef __DWC2_UDC_OTG_PRIV__
   9#define __DWC2_UDC_OTG_PRIV__
  10
  11#include <asm/errno.h>
  12#include <linux/sizes.h>
  13#include <linux/usb/ch9.h>
  14#include <linux/usb/gadget.h>
  15#include <linux/list.h>
  16#include <usb/lin_gadget_compat.h>
  17#include <usb/dwc2_udc.h>
  18
  19/*-------------------------------------------------------------------------*/
  20/* DMA bounce buffer size, 16K is enough even for mass storage */
  21#define DMA_BUFFER_SIZE (16*SZ_1K)
  22
  23#define EP0_FIFO_SIZE           64
  24#define EP_FIFO_SIZE            512
  25#define EP_FIFO_SIZE2           1024
  26/* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */
  27#define DWC2_MAX_ENDPOINTS      4
  28#define DWC2_MAX_HW_ENDPOINTS   16
  29
  30#define WAIT_FOR_SETUP          0
  31#define DATA_STATE_XMIT         1
  32#define DATA_STATE_NEED_ZLP     2
  33#define WAIT_FOR_OUT_STATUS     3
  34#define DATA_STATE_RECV         4
  35#define WAIT_FOR_COMPLETE       5
  36#define WAIT_FOR_OUT_COMPLETE   6
  37#define WAIT_FOR_IN_COMPLETE    7
  38#define WAIT_FOR_NULL_COMPLETE  8
  39
  40#define TEST_J_SEL              0x1
  41#define TEST_K_SEL              0x2
  42#define TEST_SE0_NAK_SEL        0x3
  43#define TEST_PACKET_SEL         0x4
  44#define TEST_FORCE_ENABLE_SEL   0x5
  45
  46/* ************************************************************************* */
  47/* IO
  48 */
  49
  50enum ep_type {
  51        ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
  52};
  53
  54struct dwc2_ep {
  55        struct usb_ep ep;
  56        struct dwc2_udc *dev;
  57
  58        const struct usb_endpoint_descriptor *desc;
  59        struct list_head queue;
  60        unsigned long pio_irqs;
  61        int len;
  62        void *dma_buf;
  63
  64        u8 stopped;
  65        u8 bEndpointAddress;
  66        u8 bmAttributes;
  67
  68        enum ep_type ep_type;
  69        int fifo_num;
  70};
  71
  72struct dwc2_request {
  73        struct usb_request req;
  74        struct list_head queue;
  75};
  76
  77struct dwc2_udc {
  78        struct usb_gadget gadget;
  79        struct usb_gadget_driver *driver;
  80
  81        struct dwc2_plat_otg_data *pdata;
  82
  83        int ep0state;
  84        struct dwc2_ep ep[DWC2_MAX_ENDPOINTS];
  85
  86        unsigned char usb_address;
  87
  88        unsigned req_pending:1, req_std:1;
  89};
  90
  91#define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN) == USB_DIR_IN)
  92#define ep_index(EP) ((EP)->bEndpointAddress&0xF)
  93#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
  94
  95void otg_phy_init(struct dwc2_udc *dev);
  96void otg_phy_off(struct dwc2_udc *dev);
  97
  98#endif  /* __DWC2_UDC_OTG_PRIV__ */
  99