include/usb/mv_udc.h

   1 /*
   2  * Copyright 2011, Marvell Semiconductor Inc.
   3  * Lei Wen <leiwen@marvell.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8
   9 #ifndef __MV_UDC_H__
  10 #define __MV_UDC_H__
  11
  12 #include <asm/byteorder.h>
  13 #include <asm/errno.h>
  14 #include <linux/usb/ch9.h>
  15 #include <linux/usb/gadget.h>
  16
  17 /* Endpoint 0 states */
  18 #define EP0_IDLE                0
  19 #define EP0_IN_DATA             1
  20 #define EP0_OUT_DATA            2
  21 #define EP0_XFER_COMPLETE       3
  22
  23
  24 /* Endpoint parameters */
  25 #define MAX_ENDPOINTS           4
  26 #define EP_MAX_PACKET_SIZE      0x200
  27
  28 #define EP0_MAX_PACKET_SIZE     64
  29 #define UDC_OUT_ENDPOINT        0x02
  30 #define UDC_OUT_PACKET_SIZE     EP_MAX_PACKET_SIZE
  31 #define UDC_IN_ENDPOINT         0x01
  32 #define UDC_IN_PACKET_SIZE      EP_MAX_PACKET_SIZE
  33 #define UDC_INT_ENDPOINT        0x05
  34 #define UDC_INT_PACKET_SIZE     EP_MAX_PACKET_SIZE
  35 #define UDC_BULK_PACKET_SIZE    EP_MAX_PACKET_SIZE
  36
  37 #define        NUM_ENDPOINTS   6
  38 #define         REQ_COUNT       12
  39 struct mv_ep {
  40         struct usb_ep ep;
  41         struct usb_request req;
  42         struct list_head queue;
  43         const struct usb_endpoint_descriptor *desc;
  44 };
  45
  46 struct mv_udc {
  47         u32 pad0[80];
  48 #define MICRO_8FRAME    0x8
  49 #define USBCMD_ITC(x)   (((x > 0xff) ? 0xff : x) << 16)
  50 #define USBCMD_FS2      (1 << 15)
  51 #define USBCMD_RST      (1 << 1)
  52 #define USBCMD_RUN      (1)
  53         u32 usbcmd;             /* 0x140 */
  54 #define STS_SLI         (1 << 8)
  55 #define STS_URI         (1 << 6)
  56 #define STS_PCI         (1 << 2)
  57 #define STS_UEI         (1 << 1)
  58 #define STS_UI          (1 << 0)
  59         u32 usbsts;             /* 0x144 */
  60         u32 pad1[3];
  61         u32 devaddr;            /* 0x154 */
  62         u32 epinitaddr;         /* 0x158 */
  63         u32 pad2[10];
  64 #define PTS_ENABLE      2
  65 #define PTS(x)          ((x & 0x3) << 30)
  66 #define PFSC            (1 << 24)
  67         u32 portsc;             /* 0x184 */
  68         u32 pad3[8];
  69 #define USBMODE_DEVICE  2
  70         u32 usbmode;            /* 0x1a8 */
  71         u32 epstat;             /* 0x1ac */
  72 #define EPT_TX(x)       (1 << ((x & 0xffff) + 16))
  73 #define EPT_RX(x)       (1 << (x & 0xffff))
  74         u32 epprime;            /* 0x1b0 */
  75         u32 epflush;            /* 0x1b4 */
  76         u32 pad4;
  77         u32 epcomp;             /* 0x1bc */
  78 #define CTRL_TXE              (1 << 23)
  79 #define CTRL_TXR              (1 << 22)
  80 #define CTRL_RXE              (1 << 7)
  81 #define CTRL_RXR              (1 << 6)
  82 #define CTRL_TXT_BULK         (2 << 18)
  83 #define CTRL_RXT_BULK         (2 << 2)
  84         u32 epctrl[16];         /* 0x1c0 */
  85 };
  86
  87 struct mv_drv {
  88         struct usb_gadget               gadget;
  89         struct usb_gadget_driver                *driver;
  90         struct mv_udc                   *udc;
  91 };
  92
  93 struct ept_queue_head {
  94         unsigned config;
  95         unsigned current; /* read-only */
  96
  97         unsigned next;
  98         unsigned info;
  99         unsigned page0;
 100         unsigned page1;
 101         unsigned page2;
 102         unsigned page3;
 103         unsigned page4;
 104         unsigned reserved_0;
 105
 106         unsigned char setup_data[8];
 107
 108         unsigned reserved_1;
 109         unsigned reserved_2;
 110         unsigned reserved_3;
 111         unsigned reserved_4;
 112 };
 113
 114 #define CONFIG_MAX_PKT(n)     ((n) << 16)
 115 #define CONFIG_ZLT            (1 << 29)    /* stop on zero-len xfer */
 116 #define CONFIG_IOS            (1 << 15)    /* IRQ on setup */
 117
 118 struct ept_queue_item {
 119         unsigned next;
 120         unsigned info;
 121         unsigned page0;
 122         unsigned page1;
 123         unsigned page2;
 124         unsigned page3;
 125         unsigned page4;
 126         unsigned reserved;
 127 };
 128
 129 #define TERMINATE 1
 130 #define INFO_BYTES(n)         ((n) << 16)
 131 #define INFO_IOC              (1 << 15)
 132 #define INFO_ACTIVE           (1 << 7)
 133 #define INFO_HALTED           (1 << 6)
 134 #define INFO_BUFFER_ERROR     (1 << 5)
 135 #define INFO_TX_ERROR         (1 << 3)
 136
 137 extern int usb_lowlevel_init(int index, void **controller);
 138 #endif /* __MV_UDC_H__ */