target/linux/xburst/files-2.6.32/drivers/usb/gadget/jz4740_udc.h

   1 /*
   2  * linux/drivers/usb/gadget/jz4740_udc.h
   3  *
   4  * Ingenic JZ4740 on-chip high speed USB device controller
   5  *
   6  * Copyright (C) 2006 Ingenic Semiconductor Inc.
   7  * Author: <jlwei@ingenic.cn>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  */
  14
  15 #ifndef __USB_GADGET_JZ4740_H__
  16 #define __USB_GADGET_JZ4740_H__
  17
  18 /*-------------------------------------------------------------------------*/
  19
  20 // Max packet size
  21 #define EP0_MAXPACKETSIZE       64
  22 #define EPBULK_MAXPACKETSIZE    512
  23 #define EPINTR_MAXPACKETSIZE    64
  24
  25 #define UDC_MAX_ENDPOINTS       4
  26
  27 /*-------------------------------------------------------------------------*/
  28
  29 typedef enum ep_type {
  30         ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
  31 } ep_type_t;
  32
  33 struct jz4740_ep {
  34         struct usb_ep ep;
  35         struct jz4740_udc *dev;
  36
  37         const struct usb_endpoint_descriptor *desc;
  38         unsigned long pio_irqs;
  39
  40         uint8_t stopped;
  41         uint8_t bEndpointAddress;
  42         uint8_t bmAttributes;
  43
  44         ep_type_t type;
  45         size_t fifo;
  46         u32 csr;
  47
  48         uint32_t reg_addr;
  49         struct list_head queue;
  50 };
  51
  52 struct jz4740_request {
  53         struct usb_request req;
  54         struct list_head queue;
  55 };
  56
  57 enum ep0state {
  58         WAIT_FOR_SETUP,         /* between STATUS ack and SETUP report */
  59         DATA_STATE_XMIT,        /* data tx stage */
  60         DATA_STATE_NEED_ZLP,    /* data tx zlp stage */
  61         WAIT_FOR_OUT_STATUS,    /* status stages */
  62         DATA_STATE_RECV,        /* data rx stage */
  63 };
  64
  65 /* For function binding with UDC Disable - Added by River */
  66 typedef enum {
  67         UDC_STATE_ENABLE = 0,
  68         UDC_STATE_DISABLE,
  69 }udc_state_t;
  70
  71 struct jz4740_udc {
  72         struct usb_gadget gadget;
  73         struct usb_gadget_driver *driver;
  74         struct device *dev;
  75         spinlock_t lock;
  76
  77         enum ep0state ep0state;
  78         struct jz4740_ep ep[UDC_MAX_ENDPOINTS];
  79
  80         unsigned char usb_address;
  81
  82         udc_state_t state;
  83
  84         struct resource *mem;
  85         void __iomem *base;
  86         int irq;
  87         uint32_t in_mask;
  88         uint32_t out_mask;
  89
  90         struct clk *clk;
  91 };
  92
  93 extern struct jz4740_udc *the_controller;
  94
  95 #define ep_is_in(EP)            (((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN)
  96 #define ep_maxpacket(EP)        ((EP)->ep.maxpacket)
  97 #define ep_index(EP)            ((EP)->bEndpointAddress&0xF)
  98
  99 #endif /* __USB_GADGET_JZ4740_H__ */