drivers/usb/gadget/ci_udc.h

   1 /*
   2  * Copyright 2011, Marvell Semiconductor Inc.
   3  *
   4  * Licensed under the GPL-2 or later.
   5  */
   6 #ifndef __GADGET__CI_UDC_H__
   7 #define __GADGET__CI_UDC_H__
   8
   9 #define NUM_ENDPOINTS           6
  10
  11 struct ci_udc {
  12 #define MICRO_8FRAME    0x8
  13 #define USBCMD_ITC(x)   ((((x) > 0xff) ? 0xff : x) << 16)
  14 #define USBCMD_FS2      (1 << 15)
  15 #define USBCMD_RST      (1 << 1)
  16 #define USBCMD_RUN      (1)
  17         u32 usbcmd;             /* 0x140 */
  18 #define STS_SLI         (1 << 8)
  19 #define STS_URI         (1 << 6)
  20 #define STS_PCI         (1 << 2)
  21 #define STS_UEI         (1 << 1)
  22 #define STS_UI          (1 << 0)
  23         u32 usbsts;             /* 0x144 */
  24         u32 pad1[3];
  25         u32 devaddr;            /* 0x154 */
  26         u32 epinitaddr;         /* 0x158 */
  27         u32 pad2[10];
  28 #define PTS_ENABLE      2
  29 #define PTS(x)          (((x) & 0x3) << 30)
  30 #define PFSC            (1 << 24)
  31         u32 portsc;             /* 0x184 */
  32         u32 pad3[8];
  33 #define USBMODE_DEVICE  2
  34         u32 usbmode;            /* 0x1a8 */
  35         u32 epstat;             /* 0x1ac */
  36 #define EPT_TX(x)       (1 << (((x) & 0xffff) + 16))
  37 #define EPT_RX(x)       (1 << ((x) & 0xffff))
  38         u32 epprime;            /* 0x1b0 */
  39         u32 epflush;            /* 0x1b4 */
  40         u32 pad4;
  41         u32 epcomp;             /* 0x1bc */
  42 #define CTRL_TXE        (1 << 23)
  43 #define CTRL_TXR        (1 << 22)
  44 #define CTRL_RXE        (1 << 7)
  45 #define CTRL_RXR        (1 << 6)
  46 #define CTRL_TXT_BULK   (2 << 18)
  47 #define CTRL_RXT_BULK   (2 << 2)
  48         u32 epctrl[16];         /* 0x1c0 */
  49 };
  50
  51 struct ci_ep {
  52         struct usb_ep ep;
  53         struct list_head queue;
  54         const struct usb_endpoint_descriptor *desc;
  55
  56         struct usb_request req;
  57         uint8_t *b_buf;
  58         uint32_t b_len;
  59         uint8_t b_fast[64] __aligned(ARCH_DMA_MINALIGN);
  60 };
  61
  62 struct ci_drv {
  63         struct usb_gadget               gadget;
  64         struct usb_gadget_driver        *driver;
  65         struct ehci_ctrl                *ctrl;
  66         struct ept_queue_head           *epts;
  67         struct ept_queue_item           *items[2 * NUM_ENDPOINTS];
  68         uint8_t                         *items_mem;
  69         struct ci_ep                    ep[NUM_ENDPOINTS];
  70 };
  71
  72 struct ept_queue_head {
  73         unsigned config;
  74         unsigned current;       /* read-only */
  75
  76         unsigned next;
  77         unsigned info;
  78         unsigned page0;
  79         unsigned page1;
  80         unsigned page2;
  81         unsigned page3;
  82         unsigned page4;
  83         unsigned reserved_0;
  84
  85         unsigned char setup_data[8];
  86
  87         unsigned reserved_1;
  88         unsigned reserved_2;
  89         unsigned reserved_3;
  90         unsigned reserved_4;
  91 };
  92
  93 #define CONFIG_MAX_PKT(n)       ((n) << 16)
  94 #define CONFIG_ZLT              (1 << 29)       /* stop on zero-len xfer */
  95 #define CONFIG_IOS              (1 << 15)       /* IRQ on setup */
  96
  97 struct ept_queue_item {
  98         unsigned next;
  99         unsigned info;
 100         unsigned page0;
 101         unsigned page1;
 102         unsigned page2;
 103         unsigned page3;
 104         unsigned page4;
 105         unsigned reserved;
 106 };
 107
 108 #define TERMINATE 1
 109 #define INFO_BYTES(n)           ((n) << 16)
 110 #define INFO_IOC                (1 << 15)
 111 #define INFO_ACTIVE             (1 << 7)
 112 #define INFO_HALTED             (1 << 6)
 113 #define INFO_BUFFER_ERROR       (1 << 5)
 114 #define INFO_TX_ERROR           (1 << 3)
 115 #endif