include/usb/mpc8xx_udc.h

   1 /*
   2  * Copyright (C) 2006 Bryan O'Donoghue, CodeHermit
   3  * bodonoghue@codehermit.ie
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <commproc.h>
   9
  10 /* Mode Register */
  11 #define USMOD_EN        0x01
  12 #define USMOD_HOST      0x02
  13 #define USMOD_TEST      0x04
  14 #define USMOD_SFTE      0x08
  15 #define USMOD_RESUME    0x40
  16 #define USMOD_LSS       0x80
  17
  18 /* Endpoint Registers */
  19 #define USEP_RHS_NORM   0x00
  20 #define USEP_RHS_IGNORE 0x01
  21 #define USEP_RHS_NAK    0x02
  22 #define USEP_RHS_STALL  0x03
  23
  24 #define USEP_THS_NORM   0x00
  25 #define USEP_THS_IGNORE 0x04
  26 #define USEP_THS_NAK    0x08
  27 #define USEP_THS_STALL  0x0C
  28
  29 #define USEP_RTE        0x10
  30 #define USEP_MF         0x20
  31
  32 #define USEP_TM_CONTROL 0x00
  33 #define USEP_TM_INT     0x100
  34 #define USEP_TM_BULK    0x200
  35 #define USEP_TM_ISO     0x300
  36
  37 /* Command Register */
  38 #define USCOM_EP0       0x00
  39 #define USCOM_EP1       0x01
  40 #define USCOM_EP2       0x02
  41 #define USCOM_EP3       0x03
  42
  43 #define USCOM_FLUSH     0x40
  44 #define USCOM_STR       0x80
  45
  46 /* Event Register */
  47 #define USB_E_RXB       0x0001
  48 #define USB_E_TXB       0x0002
  49 #define USB_E_BSY       0x0004
  50 #define USB_E_SOF       0x0008
  51 #define USB_E_TXE1      0x0010
  52 #define USB_E_TXE2      0x0020
  53 #define USB_E_TXE3      0x0040
  54 #define USB_E_TXE4      0x0080
  55 #define USB_TX_ERRMASK (USB_E_TXE1|USB_E_TXE2|USB_E_TXE3|USB_E_TXE4)
  56 #define USB_E_IDLE      0x0100
  57 #define USB_E_RESET     0x0200
  58
  59 /* Mask Register */
  60 #define USBS_IDLE       0x01
  61
  62 /* RX Buffer Descriptor */
  63 #define RX_BD_OV        0x02
  64 #define RX_BD_CR        0x04
  65 #define RX_BD_AB        0x08
  66 #define RX_BD_NO        0x10
  67 #define RX_BD_PID_DATA0 0x00
  68 #define RX_BD_PID_DATA1 0x40
  69 #define RX_BD_PID_SETUP 0x80
  70 #define RX_BD_F         0x400
  71 #define RX_BD_L         0x800
  72 #define RX_BD_I         0x1000
  73 #define RX_BD_W         0x2000
  74 #define RX_BD_E         0x8000
  75
  76 /* Useful masks */
  77 #define RX_BD_PID_BITMASK (RX_BD_PID_DATA1 | RX_BD_PID_SETUP)
  78 #define STALL_BITMASK (USEP_THS_STALL | USEP_RHS_STALL)
  79 #define NAK_BITMASK (USEP_THS_NAK | USEP_RHS_NAK)
  80 #define CBD_TX_BITMASK (TX_BD_R | TX_BD_L | TX_BD_TC | TX_BD_I | TX_BD_CNF)
  81
  82 /* TX Buffer Descriptor */
  83 #define TX_BD_UN        0x02
  84 #define TX_BD_TO        0x04
  85 #define TX_BD_NO_PID    0x00
  86 #define TX_BD_PID_DATA0 0x80
  87 #define TX_BD_PID_DATA1 0xC0
  88 #define TX_BD_CNF       0x200
  89 #define TX_BD_TC        0x400
  90 #define TX_BD_L         0x800
  91 #define TX_BD_I         0x1000
  92 #define TX_BD_W         0x2000
  93 #define TX_BD_R         0x8000
  94
  95 /* Implementation specific defines */
  96
  97 #define EP_MIN_PACKET_SIZE 0x08
  98 #define MAX_ENDPOINTS   0x04
  99 #define FIFO_SIZE       0x10
 100 #define EP_MAX_PKT      FIFO_SIZE
 101 #define TX_RING_SIZE    0x04
 102 #define RX_RING_SIZE    0x06
 103 #define USB_MAX_PKT     0x40
 104 #define TOGGLE_TX_PID(x) x= ((~x)&0x40)|0x80
 105 #define TOGGLE_RX_PID(x) x^= 0x40
 106 #define EP_ATTACHED     0x01    /* Endpoint has a urb attached or not */
 107 #define EP_SEND_ZLP     0x02    /* Send ZLP y/n ? */
 108
 109 #define PROFF_USB       0x00000000
 110 #define CPM_USB_BASE    0x00000A00
 111
 112 /* UDC device defines */
 113 #define EP0_MAX_PACKET_SIZE     EP_MAX_PKT
 114
 115 #define UDC_OUT_PACKET_SIZE     EP_MIN_PACKET_SIZE
 116 #define UDC_IN_PACKET_SIZE      EP_MIN_PACKET_SIZE
 117 #define UDC_INT_PACKET_SIZE     UDC_IN_PACKET_SIZE
 118 #define UDC_BULK_PACKET_SIZE    EP_MIN_PACKET_SIZE
 119
 120 struct mpc8xx_ep {
 121         struct urb * urb;
 122         unsigned char pid;
 123         unsigned char sc;
 124         volatile cbd_t * prx;
 125 };
 126
 127 typedef struct mpc8xx_usb{
 128         char usmod;     /* Mode Register */
 129         char usaddr;    /* Slave Address Register */
 130         char uscom;     /* Command Register */
 131         char res1;      /* Reserved */
 132         ushort usep[4];
 133         ulong res2;     /* Reserved */
 134         ushort usber;   /* Event Register */
 135         ushort res3;    /* Reserved */
 136         ushort usbmr;   /* Mask Register */
 137         char res4;      /* Reserved */
 138         char usbs;      /* Status Register */
 139         char res5[8];   /* Reserved */
 140 }usb_t;
 141
 142 typedef struct mpc8xx_parameter_ram{
 143         ushort ep0ptr;  /* Endpoint Pointer Register 0 */
 144         ushort ep1ptr;  /* Endpoint Pointer Register 1 */
 145         ushort ep2ptr;  /* Endpoint Pointer Register 2 */
 146         ushort ep3ptr;  /* Endpoint Pointer Register 3 */
 147         uint rstate;    /* Receive state */
 148         uint rptr;      /* Receive internal data pointer */
 149         ushort frame_n; /* Frame number */
 150         ushort rbcnt;   /* Receive byte count */
 151         uint rtemp;     /* Receive temp cp use only */
 152         uint rxusb;     /* Rx Data Temp */
 153         ushort rxuptr;  /* Rx microcode return address temp */
 154 }usb_pram_t;
 155
 156 typedef struct endpoint_parameter_block_pointer{
 157         ushort rbase;   /* RxBD base address */
 158         ushort tbase;   /* TxBD base address */
 159         char rfcr;      /* Rx Function code */
 160         char tfcr;      /* Tx Function code */
 161         ushort mrblr;   /* Maximum Receive Buffer Length */
 162         ushort rbptr;   /* RxBD pointer Next Buffer Descriptor */
 163         ushort tbptr;   /* TxBD pointer Next Buffer Descriptor  */
 164         ulong tstate;   /* Transmit internal state */
 165         ulong tptr;     /* Transmit internal data pointer */
 166         ushort tcrc;    /* Transmit temp CRC */
 167         ushort tbcnt;   /* Transmit internal bye count */
 168         ulong ttemp;    /* Tx temp */
 169         ushort txuptr;  /* Tx microcode return address */
 170         ushort res1;    /* Reserved */
 171 }usb_epb_t;
 172
 173 typedef enum mpc8xx_udc_state{
 174         STATE_NOT_READY,
 175         STATE_ERROR,
 176         STATE_READY,
 177 }mpc8xx_udc_state_t;
 178