linux/include/linux/sdla.h
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   1/*
   2 * INET         An implementation of the TCP/IP protocol suite for the LINUX
   3 *              operating system.  INET is implemented using the  BSD Socket
   4 *              interface as the means of communication with the user level.
   5 *
   6 *              Global definitions for the Frame relay interface.
   7 *
   8 * Version:     @(#)if_ifrad.h  0.20    13 Apr 96
   9 *
  10 * Author:      Mike McLagan <mike.mclagan@linux.org>
  11 *
  12 * Changes:
  13 *              0.15    Mike McLagan    Structure packing
  14 *
  15 *              0.20    Mike McLagan    New flags for S508 buffer handling
  16 *
  17 *              This program is free software; you can redistribute it and/or
  18 *              modify it under the terms of the GNU General Public License
  19 *              as published by the Free Software Foundation; either version
  20 *              2 of the License, or (at your option) any later version.
  21 */
  22
  23#ifndef SDLA_H
  24#define SDLA_H
  25
  26/* adapter type */
  27#define SDLA_TYPES
  28#define SDLA_S502A                      5020
  29#define SDLA_S502E                      5021
  30#define SDLA_S503                       5030
  31#define SDLA_S507                       5070
  32#define SDLA_S508                       5080
  33#define SDLA_S509                       5090
  34#define SDLA_UNKNOWN                    -1
  35
  36/* port selection flags for the S508 */
  37#define SDLA_S508_PORT_V35              0x00
  38#define SDLA_S508_PORT_RS232            0x02
  39
  40/* Z80 CPU speeds */
  41#define SDLA_CPU_3M                     0x00
  42#define SDLA_CPU_5M                     0x01
  43#define SDLA_CPU_7M                     0x02
  44#define SDLA_CPU_8M                     0x03
  45#define SDLA_CPU_10M                    0x04
  46#define SDLA_CPU_16M                    0x05
  47#define SDLA_CPU_12M                    0x06
  48
  49/* some private IOCTLs */
  50#define SDLA_IDENTIFY                   (FRAD_LAST_IOCTL + 1)
  51#define SDLA_CPUSPEED                   (FRAD_LAST_IOCTL + 2)
  52#define SDLA_PROTOCOL                   (FRAD_LAST_IOCTL + 3)
  53
  54#define SDLA_CLEARMEM                   (FRAD_LAST_IOCTL + 4)
  55#define SDLA_WRITEMEM                   (FRAD_LAST_IOCTL + 5)
  56#define SDLA_READMEM                    (FRAD_LAST_IOCTL + 6)
  57
  58struct sdla_mem {
  59   int  addr;
  60   int  len;
  61   void __user *data;
  62};
  63
  64#define SDLA_START                      (FRAD_LAST_IOCTL + 7)
  65#define SDLA_STOP                       (FRAD_LAST_IOCTL + 8)
  66
  67/* some offsets in the Z80's memory space */
  68#define SDLA_NMIADDR                    0x0000
  69#define SDLA_CONF_ADDR                  0x0010
  70#define SDLA_S502A_NMIADDR              0x0066
  71#define SDLA_CODE_BASEADDR              0x0100
  72#define SDLA_WINDOW_SIZE                0x2000
  73#define SDLA_ADDR_MASK                  0x1FFF
  74
  75/* largest handleable block of data */
  76#define SDLA_MAX_DATA                   4080
  77#define SDLA_MAX_MTU                    4072    /* MAX_DATA - sizeof(fradhdr) */
  78#define SDLA_MAX_DLCI                   24
  79
  80/* this should be the same as frad_conf */
  81struct sdla_conf {
  82   short station;
  83   short config;
  84   short kbaud;
  85   short clocking;
  86   short max_frm;
  87   short T391;
  88   short T392;
  89   short N391;
  90   short N392;
  91   short N393;
  92   short CIR_fwd;
  93   short Bc_fwd;
  94   short Be_fwd;
  95   short CIR_bwd;
  96   short Bc_bwd;
  97   short Be_bwd;
  98};
  99
 100/* this should be the same as dlci_conf */
 101struct sdla_dlci_conf {
 102   short config;
 103   short CIR_fwd;
 104   short Bc_fwd;
 105   short Be_fwd;
 106   short CIR_bwd;
 107   short Bc_bwd;
 108   short Be_bwd; 
 109   short Tc_fwd;
 110   short Tc_bwd;
 111   short Tf_max;
 112   short Tb_max;
 113};
 114
 115#ifdef __KERNEL__
 116
 117/* important Z80 window addresses */
 118#define SDLA_CONTROL_WND                0xE000
 119
 120#define SDLA_502_CMD_BUF                0xEF60
 121#define SDLA_502_RCV_BUF                0xA900
 122#define SDLA_502_TXN_AVAIL              0xFFF1
 123#define SDLA_502_RCV_AVAIL              0xFFF2
 124#define SDLA_502_EVENT_FLAGS            0xFFF3
 125#define SDLA_502_MDM_STATUS             0xFFF4
 126#define SDLA_502_IRQ_INTERFACE          0xFFFD
 127#define SDLA_502_IRQ_PERMISSION         0xFFFE
 128#define SDLA_502_DATA_OFS               0x0010
 129
 130#define SDLA_508_CMD_BUF                0xE000
 131#define SDLA_508_TXBUF_INFO             0xF100
 132#define SDLA_508_RXBUF_INFO             0xF120
 133#define SDLA_508_EVENT_FLAGS            0xF003
 134#define SDLA_508_MDM_STATUS             0xF004
 135#define SDLA_508_IRQ_INTERFACE          0xF010
 136#define SDLA_508_IRQ_PERMISSION         0xF011
 137#define SDLA_508_TSE_OFFSET             0xF012
 138
 139/* Event flags */
 140#define SDLA_EVENT_STATUS               0x01
 141#define SDLA_EVENT_DLCI_STATUS          0x02
 142#define SDLA_EVENT_BAD_DLCI             0x04
 143#define SDLA_EVENT_LINK_DOWN            0x40
 144
 145/* IRQ Trigger flags */
 146#define SDLA_INTR_RX                    0x01
 147#define SDLA_INTR_TX                    0x02
 148#define SDLA_INTR_MODEM                 0x04
 149#define SDLA_INTR_COMPLETE              0x08
 150#define SDLA_INTR_STATUS                0x10
 151#define SDLA_INTR_TIMER                 0x20
 152
 153/* DLCI status bits */
 154#define SDLA_DLCI_DELETED               0x01
 155#define SDLA_DLCI_ACTIVE                0x02
 156#define SDLA_DLCI_WAITING               0x04
 157#define SDLA_DLCI_NEW                   0x08
 158#define SDLA_DLCI_INCLUDED              0x40
 159
 160/* valid command codes */
 161#define SDLA_INFORMATION_WRITE          0x01
 162#define SDLA_INFORMATION_READ           0x02
 163#define SDLA_ISSUE_IN_CHANNEL_SIGNAL    0x03
 164#define SDLA_SET_DLCI_CONFIGURATION     0x10
 165#define SDLA_READ_DLCI_CONFIGURATION    0x11
 166#define SDLA_DISABLE_COMMUNICATIONS     0x12
 167#define SDLA_ENABLE_COMMUNICATIONS      0x13
 168#define SDLA_READ_DLC_STATUS            0x14
 169#define SDLA_READ_DLC_STATISTICS        0x15
 170#define SDLA_FLUSH_DLC_STATISTICS       0x16
 171#define SDLA_LIST_ACTIVE_DLCI           0x17
 172#define SDLA_FLUSH_INFORMATION_BUFFERS  0x18
 173#define SDLA_ADD_DLCI                   0x20
 174#define SDLA_DELETE_DLCI                0x21
 175#define SDLA_ACTIVATE_DLCI              0x22
 176#define SDLA_DEACTIVATE_DLCI            0x23
 177#define SDLA_READ_MODEM_STATUS          0x30
 178#define SDLA_SET_MODEM_STATUS           0x31
 179#define SDLA_READ_COMMS_ERR_STATS       0x32
 180#define SDLA_FLUSH_COMMS_ERR_STATS      0x33
 181#define SDLA_READ_CODE_VERSION          0x40
 182#define SDLA_SET_IRQ_TRIGGER            0x50
 183#define SDLA_GET_IRQ_TRIGGER            0x51
 184
 185/* In channel signal types */
 186#define SDLA_ICS_LINK_VERIFY            0x02
 187#define SDLA_ICS_STATUS_ENQ             0x03
 188
 189/* modem status flags */
 190#define SDLA_MODEM_DTR_HIGH             0x01
 191#define SDLA_MODEM_RTS_HIGH             0x02
 192#define SDLA_MODEM_DCD_HIGH             0x08
 193#define SDLA_MODEM_CTS_HIGH             0x20
 194
 195/* used for RET_MODEM interpretation */
 196#define SDLA_MODEM_DCD_LOW              0x01
 197#define SDLA_MODEM_CTS_LOW              0x02
 198
 199/* return codes */
 200#define SDLA_RET_OK                     0x00
 201#define SDLA_RET_COMMUNICATIONS         0x01
 202#define SDLA_RET_CHANNEL_INACTIVE       0x02
 203#define SDLA_RET_DLCI_INACTIVE          0x03
 204#define SDLA_RET_DLCI_CONFIG            0x04
 205#define SDLA_RET_BUF_TOO_BIG            0x05
 206#define SDLA_RET_NO_DATA                0x05
 207#define SDLA_RET_BUF_OVERSIZE           0x06
 208#define SDLA_RET_CIR_OVERFLOW           0x07
 209#define SDLA_RET_NO_BUFS                0x08
 210#define SDLA_RET_TIMEOUT                0x0A
 211#define SDLA_RET_MODEM                  0x10
 212#define SDLA_RET_CHANNEL_OFF            0x11
 213#define SDLA_RET_CHANNEL_ON             0x12
 214#define SDLA_RET_DLCI_STATUS            0x13
 215#define SDLA_RET_DLCI_UNKNOWN           0x14
 216#define SDLA_RET_COMMAND_INVALID        0x1F
 217
 218/* Configuration flags */
 219#define SDLA_DIRECT_RECV                0x0080
 220#define SDLA_TX_NO_EXCEPT               0x0020
 221#define SDLA_NO_ICF_MSGS                0x1000
 222#define SDLA_TX50_RX50                  0x0000
 223#define SDLA_TX70_RX30                  0x2000
 224#define SDLA_TX30_RX70                  0x4000
 225
 226/* IRQ selection flags */
 227#define SDLA_IRQ_RECEIVE                0x01
 228#define SDLA_IRQ_TRANSMIT               0x02
 229#define SDLA_IRQ_MODEM_STAT             0x04
 230#define SDLA_IRQ_COMMAND                0x08
 231#define SDLA_IRQ_CHANNEL                0x10
 232#define SDLA_IRQ_TIMER                  0x20
 233
 234/* definitions for PC memory mapping */
 235#define SDLA_8K_WINDOW                  0x01
 236#define SDLA_S502_SEG_A                 0x10
 237#define SDLA_S502_SEG_C                 0x20
 238#define SDLA_S502_SEG_D                 0x00
 239#define SDLA_S502_SEG_E                 0x30
 240#define SDLA_S507_SEG_A                 0x00
 241#define SDLA_S507_SEG_B                 0x40
 242#define SDLA_S507_SEG_C                 0x80
 243#define SDLA_S507_SEG_E                 0xC0
 244#define SDLA_S508_SEG_A                 0x00
 245#define SDLA_S508_SEG_C                 0x10
 246#define SDLA_S508_SEG_D                 0x08
 247#define SDLA_S508_SEG_E                 0x18
 248
 249/* SDLA adapter port constants */
 250#define SDLA_IO_EXTENTS                 0x04
 251        
 252#define SDLA_REG_CONTROL                0x00
 253#define SDLA_REG_PC_WINDOW              0x01    /* offset for PC window select latch */
 254#define SDLA_REG_Z80_WINDOW             0x02    /* offset for Z80 window select latch */
 255#define SDLA_REG_Z80_CONTROL            0x03    /* offset for Z80 control latch */
 256        
 257#define SDLA_S502_STS                   0x00    /* status reg for 502, 502E, 507 */
 258#define SDLA_S508_GNRL                  0x00    /* general purp. reg for 508 */
 259#define SDLA_S508_STS                   0x01    /* status reg for 508 */
 260#define SDLA_S508_IDR                   0x02    /* ID reg for 508 */
 261        
 262/* control register flags */
 263#define SDLA_S502A_START                0x00    /* start the CPU */
 264#define SDLA_S502A_INTREQ               0x02
 265#define SDLA_S502A_INTEN                0x04
 266#define SDLA_S502A_HALT                 0x08    /* halt the CPU */      
 267#define SDLA_S502A_NMI                  0x10    /* issue an NMI to the CPU */
 268
 269#define SDLA_S502E_CPUEN                0x01
 270#define SDLA_S502E_ENABLE               0x02
 271#define SDLA_S502E_INTACK               0x04
 272        
 273#define SDLA_S507_ENABLE                0x01
 274#define SDLA_S507_IRQ3                  0x00
 275#define SDLA_S507_IRQ4                  0x20
 276#define SDLA_S507_IRQ5                  0x40
 277#define SDLA_S507_IRQ7                  0x60
 278#define SDLA_S507_IRQ10                 0x80
 279#define SDLA_S507_IRQ11                 0xA0
 280#define SDLA_S507_IRQ12                 0xC0
 281#define SDLA_S507_IRQ15                 0xE0
 282        
 283#define SDLA_HALT                       0x00
 284#define SDLA_CPUEN                      0x02
 285#define SDLA_MEMEN                      0x04
 286#define SDLA_S507_EPROMWR               0x08
 287#define SDLA_S507_EPROMCLK              0x10
 288#define SDLA_S508_INTRQ                 0x08
 289#define SDLA_S508_INTEN                 0x10
 290
 291struct sdla_cmd {
 292   char  opp_flag;
 293   char  cmd;
 294   short length;
 295   char  retval;
 296   short dlci;
 297   char  flags;
 298   short rxlost_int;
 299   long  rxlost_app;
 300   char  reserve[2];
 301   char  data[SDLA_MAX_DATA];   /* transfer data buffer */
 302} __attribute__((packed));
 303
 304struct intr_info {
 305   char  flags;
 306   short txlen;
 307   char  irq;
 308   char  flags2;
 309   short timeout;
 310} __attribute__((packed));
 311
 312/* found in the 508's control window at RXBUF_INFO */
 313struct buf_info {
 314   unsigned short rse_num;
 315   unsigned long  rse_base;
 316   unsigned long  rse_next;
 317   unsigned long  buf_base;
 318   unsigned short reserved;
 319   unsigned long  buf_top;
 320} __attribute__((packed));
 321
 322/* structure pointed to by rse_base in RXBUF_INFO struct */
 323struct buf_entry {
 324   char  opp_flag;
 325   short length;
 326   short dlci;
 327   char  flags;
 328   short timestamp;
 329   short reserved[2];
 330   long  buf_addr;
 331} __attribute__((packed));
 332
 333#endif
 334
 335#endif
 336
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