drivers/net/irda/donauboe.h

   1 /*********************************************************************
   2  *
   3  * Filename:      toshoboe.h
   4  * Version:       2.16
   5  * Description:   Driver for the Toshiba OBOE (or type-O or 701)
   6  *                FIR Chipset, also supports the DONAUOBOE (type-DO
   7  *                or d01) FIR chipset which as far as I know is
   8  *                register compatible.
   9  * Status:        Experimental.
  10  * Author:        James McKenzie <james@fishsoup.dhs.org>
  11  * Created at:    Sat May 8  12:35:27 1999
  12  * Modified: 2.16 Martin Lucina <mato@kotelna.sk>
  13  * Modified: 2.16 Sat Jun 22 18:54:29 2002 (sync headers)
  14  * Modified: 2.17 Christian Gennerat <christian.gennerat@polytechnique.org>
  15  * Modified: 2.17 jeu sep 12 08:50:20 2002 (add lock to be used by spinlocks)
  16  *
  17  *     Copyright (c) 1999 James McKenzie, All Rights Reserved.
  18  *
  19  *     This program is free software; you can redistribute it and/or
  20  *     modify it under the terms of the GNU General Public License as
  21  *     published by the Free Software Foundation; either version 2 of
  22  *     the License, or (at your option) any later version.
  23  *
  24  *     Neither James McKenzie nor Cambridge University admit liability nor
  25  *     provide warranty for any of this software. This material is
  26  *     provided "AS-IS" and at no charge.
  27  *
  28  *     Applicable Models : Libretto 100/110CT and many more.
  29  *     Toshiba refers to this chip as the type-O IR port,
  30  *     or the type-DO IR port.
  31  *
  32  * IrDA chip set list from Toshiba Computer Engineering Corp.
  33  * model                        method  maker   controller              Version
  34  * Portege 320CT        FIR,SIR Toshiba Oboe(Triangle)
  35  * Portege 3010CT       FIR,SIR Toshiba Oboe(Sydney)
  36  * Portege 3015CT       FIR,SIR Toshiba Oboe(Sydney)
  37  * Portege 3020CT       FIR,SIR Toshiba Oboe(Sydney)
  38  * Portege 7020CT       FIR,SIR ?               ?
  39  *
  40  * Satell. 4090XCDT     FIR,SIR ?               ?
  41  *
  42  * Libretto 100CT       FIR,SIR Toshiba Oboe
  43  * Libretto 1000CT      FIR,SIR Toshiba Oboe
  44  *
  45  * TECRA750DVD          FIR,SIR Toshiba Oboe(Triangle)  REV ID=14h
  46  * TECRA780                     FIR,SIR Toshiba Oboe(Sandlot)   REV ID=32h,33h
  47  * TECRA750CDT          FIR,SIR Toshiba Oboe(Triangle)  REV ID=13h,14h
  48  * TECRA8000            FIR,SIR Toshiba Oboe(ISKUR)             REV ID=23h
  49  *
  50  ********************************************************************/
  51
  52 /* The documentation for this chip is allegedly released         */
  53 /* However I have not seen it, not have I managed to contact     */
  54 /* anyone who has. HOWEVER the chip bears a striking resemblance */
  55 /* to the IrDA controller in the Toshiba RISC TMPR3922 chip      */
  56 /* the documentation for this is freely available at             */
  57 /* http://www.madingley.org/james/resources/toshoboe/TMPR3922.pdf */
  58 /* The mapping between the registers in that document and the    */
  59 /* Registers in the 701 oboe chip are as follows    */
  60
  61
  62 /* 3922 reg     701 regs, by bit numbers                        */
  63 /*               7- 0  15- 8  24-16  31-25                      */
  64 /* $28            0x0    0x1                                    */
  65 /* $2c                                     SEE NOTE 1           */
  66 /* $30            0x6    0x7                                    */
  67 /* $34            0x8    0x9               SEE NOTE 2           */
  68 /* $38           0x10   0x11                                    */
  69 /* $3C                   0xe               SEE NOTE 3           */
  70 /* $40           0x12   0x13                                    */
  71 /* $44           0x14   0x15                                    */
  72 /* $48           0x16   0x17                                    */
  73 /* $4c           0x18   0x19                                    */
  74 /* $50           0x1a   0x1b                                    */
  75
  76 /* FIXME: could be 0x1b 0x1a here */
  77
  78 /* $54           0x1d   0x1c                                    */
  79 /* $5C           0xf                       SEE NOTE 4           */
  80 /* $130                                    SEE NOTE 5           */
  81 /* $134                                    SEE NOTE 6           */
  82 /*                                                              */
  83 /* NOTES:                                                       */
  84 /* 1. The pointer to ring is packed in most unceremoniusly      */
  85 /*    701 Register      Address bits    (A9-A0 must be zero)    */
  86 /*            0x4:      A17 A16 A15 A14 A13 A12 A11 A10         */
  87 /*            0x5:      A25 A24 A23 A22 A21 A20 A19 A18         */
  88 /*            0x2:        0   0 A31 A30 A29 A28 A27 A26         */
  89 /*                                                              */
  90 /* 2. The M$ drivers do a write 0x1 to 0x9, however the 3922    */
  91 /*    documentation would suggest that a write of 0x1 to 0x8    */
  92 /*    would be more appropriate.                                */
  93 /*                                                              */
  94 /* 3. This assignment is tenuous at best, register 0xe seems to */
  95 /*    have bits arranged 0 0 0 R/W R/W R/W R/W R/W              */
  96 /*    if either of the lower two bits are set the chip seems to */
  97 /*    switch off                                                */
  98 /*                                                              */
  99 /* 4. Bits 7-4 seem to be different 4 seems just to be generic  */
 100 /*    receiver busy flag                                        */
 101 /*                                                              */
 102 /* 5. and 6. The IER and ISR have a different bit assignment    */
 103 /*    The lower three bits of both read back as ones            */
 104 /* ISR is register 0xc, IER is register 0xd                     */
 105 /*           7      6      5      4      3      2      1      0 */
 106 /* 0xc: TxDone RxDone TxUndr RxOver SipRcv      1      1      1 */
 107 /* 0xd: TxDone RxDone TxUndr RxOver SipRcv      1      1      1 */
 108 /* TxDone xmitt done (generated only if generate interrupt bit  */
 109 /*   is set in the ring)                                        */
 110 /* RxDone recv completed (or other recv condition if you set it */
 111 /*   up                                                         */
 112 /* TxUnder underflow in Transmit FIFO                           */
 113 /* RxOver  overflow in Recv FIFO                                */
 114 /* SipRcv  received serial gap  (or other condition you set)    */
 115 /* Interrupts are enabled by writing a one to the IER register  */
 116 /* Interrupts are cleared by writing a one to the ISR register */
 117 /*                                                              */
 118 /* 6. The remaining registers: 0x6 and 0x3 appear to be         */
 119 /*    reserved parts of 16 or 32 bit registersthe remainder     */
 120 /*    0xa 0xb 0x1e 0x1f could possibly be (by their behaviour)  */
 121 /*    the Unicast Filter register at $58.                       */
 122 /*                                                              */
 123 /* 7. While the core obviously expects 32 bit accesses all the  */
 124 /*    M$ drivers do 8 bit accesses, infact the Miniport ones    */
 125 /*    write and read back the byte serveral times (why?)        */
 126
 127
 128 #ifndef TOSHOBOE_H
 129 #define TOSHOBOE_H
 130
 131 /* Registers */
 132
 133 #define OBOE_IO_EXTENT  0x1f
 134
 135 /*Receive and transmit slot pointers */
 136 #define OBOE_REG(i)     (i+(self->base))
 137 #define OBOE_RXSLOT     OBOE_REG(0x0)
 138 #define OBOE_TXSLOT     OBOE_REG(0x1)
 139 #define OBOE_SLOT_MASK  0x3f
 140
 141 #define OBOE_TXRING_OFFSET              0x200
 142 #define OBOE_TXRING_OFFSET_IN_SLOTS     0x40
 143
 144 /*pointer to the ring */
 145 #define OBOE_RING_BASE0 OBOE_REG(0x4)
 146 #define OBOE_RING_BASE1 OBOE_REG(0x5)
 147 #define OBOE_RING_BASE2 OBOE_REG(0x2)
 148 #define OBOE_RING_BASE3 OBOE_REG(0x3)
 149
 150 /*Number of slots in the ring */
 151 #define OBOE_RING_SIZE  OBOE_REG(0x7)
 152 #define OBOE_RING_SIZE_RX4      0x00
 153 #define OBOE_RING_SIZE_RX8      0x01
 154 #define OBOE_RING_SIZE_RX16     0x03
 155 #define OBOE_RING_SIZE_RX32     0x07
 156 #define OBOE_RING_SIZE_RX64     0x0f
 157 #define OBOE_RING_SIZE_TX4      0x00
 158 #define OBOE_RING_SIZE_TX8      0x10
 159 #define OBOE_RING_SIZE_TX16     0x30
 160 #define OBOE_RING_SIZE_TX32     0x70
 161 #define OBOE_RING_SIZE_TX64     0xf0
 162
 163 #define OBOE_RING_MAX_SIZE      64
 164
 165 /*Causes the gubbins to re-examine the ring */
 166 #define OBOE_PROMPT     OBOE_REG(0x9)
 167 #define OBOE_PROMPT_BIT         0x1
 168
 169 /* Interrupt Status Register */
 170 #define OBOE_ISR        OBOE_REG(0xc)
 171 /* Interrupt Enable Register */
 172 #define OBOE_IER        OBOE_REG(0xd)
 173 /* Interrupt bits for IER and ISR */
 174 #define OBOE_INT_TXDONE         0x80
 175 #define OBOE_INT_RXDONE         0x40
 176 #define OBOE_INT_TXUNDER        0x20
 177 #define OBOE_INT_RXOVER         0x10
 178 #define OBOE_INT_SIP            0x08
 179 #define OBOE_INT_MASK           0xf8
 180
 181 /*Reset Register */
 182 #define OBOE_CONFIG1    OBOE_REG(0xe)
 183 #define OBOE_CONFIG1_RST        0x01
 184 #define OBOE_CONFIG1_DISABLE    0x02
 185 #define OBOE_CONFIG1_4          0x08
 186 #define OBOE_CONFIG1_8          0x08
 187
 188 #define OBOE_CONFIG1_ON         0x8
 189 #define OBOE_CONFIG1_RESET      0xf
 190 #define OBOE_CONFIG1_OFF        0xe
 191
 192 #define OBOE_STATUS     OBOE_REG(0xf)
 193 #define OBOE_STATUS_RXBUSY      0x10
 194 #define OBOE_STATUS_FIRRX       0x04
 195 #define OBOE_STATUS_MIRRX       0x02
 196 #define OBOE_STATUS_SIRRX       0x01
 197
 198
 199 /*Speed control registers */
 200 #define OBOE_CONFIG0L   OBOE_REG(0x10)
 201 #define OBOE_CONFIG0H   OBOE_REG(0x11)
 202
 203 #define OBOE_CONFIG0H_TXONLOOP  0x80 /*Transmit when looping (dangerous) */
 204 #define OBOE_CONFIG0H_LOOP      0x40 /*Loopback Tx->Rx */
 205 #define OBOE_CONFIG0H_ENTX      0x10 /*Enable Tx */
 206 #define OBOE_CONFIG0H_ENRX      0x08 /*Enable Rx */
 207 #define OBOE_CONFIG0H_ENDMAC    0x04 /*Enable/reset* the DMA controller */
 208 #define OBOE_CONFIG0H_RCVANY    0x02 /*DMA mode 1=bytes, 0=dwords */
 209
 210 #define OBOE_CONFIG0L_CRC16     0x80 /*CRC 1=16 bit 0=32 bit */
 211 #define OBOE_CONFIG0L_ENFIR     0x40 /*Enable FIR */
 212 #define OBOE_CONFIG0L_ENMIR     0x20 /*Enable MIR */
 213 #define OBOE_CONFIG0L_ENSIR     0x10 /*Enable SIR */
 214 #define OBOE_CONFIG0L_ENSIRF    0x08 /*Enable SIR framer */
 215 #define OBOE_CONFIG0L_SIRTEST   0x04 /*Enable SIR framer in MIR and FIR */
 216 #define OBOE_CONFIG0L_INVERTTX  0x02 /*Invert Tx Line */
 217 #define OBOE_CONFIG0L_INVERTRX  0x01 /*Invert Rx Line */
 218
 219 #define OBOE_BOF        OBOE_REG(0x12)
 220 #define OBOE_EOF        OBOE_REG(0x13)
 221
 222 #define OBOE_ENABLEL    OBOE_REG(0x14)
 223 #define OBOE_ENABLEH    OBOE_REG(0x15)
 224
 225 #define OBOE_ENABLEH_PHYANDCLOCK        0x80 /*Toggle low to copy config in */
 226 #define OBOE_ENABLEH_CONFIGERR          0x40
 227 #define OBOE_ENABLEH_FIRON              0x20
 228 #define OBOE_ENABLEH_MIRON              0x10
 229 #define OBOE_ENABLEH_SIRON              0x08
 230 #define OBOE_ENABLEH_ENTX               0x04
 231 #define OBOE_ENABLEH_ENRX               0x02
 232 #define OBOE_ENABLEH_CRC16              0x01
 233
 234 #define OBOE_ENABLEL_BROADCAST          0x01
 235
 236 #define OBOE_CURR_PCONFIGL              OBOE_REG(0x16) /*Current config */
 237 #define OBOE_CURR_PCONFIGH              OBOE_REG(0x17)
 238
 239 #define OBOE_NEW_PCONFIGL               OBOE_REG(0x18)
 240 #define OBOE_NEW_PCONFIGH               OBOE_REG(0x19)
 241
 242 #define OBOE_PCONFIGH_BAUDMASK          0xfc
 243 #define OBOE_PCONFIGH_WIDTHMASK         0x04
 244 #define OBOE_PCONFIGL_WIDTHMASK         0xe0
 245 #define OBOE_PCONFIGL_PREAMBLEMASK      0x1f
 246
 247 #define OBOE_PCONFIG_BAUDMASK           0xfc00
 248 #define OBOE_PCONFIG_BAUDSHIFT          10
 249 #define OBOE_PCONFIG_WIDTHMASK          0x04e0
 250 #define OBOE_PCONFIG_WIDTHSHIFT         5
 251 #define OBOE_PCONFIG_PREAMBLEMASK       0x001f
 252 #define OBOE_PCONFIG_PREAMBLESHIFT      0
 253
 254 #define OBOE_MAXLENL                    OBOE_REG(0x1a)
 255 #define OBOE_MAXLENH                    OBOE_REG(0x1b)
 256
 257 #define OBOE_RXCOUNTH                   OBOE_REG(0x1c) /*Reset on recipt */
 258 #define OBOE_RXCOUNTL                   OBOE_REG(0x1d) /*of whole packet */
 259
 260 /* The PCI ID of the OBOE chip */
 261 #ifndef PCI_DEVICE_ID_FIR701
 262 #define PCI_DEVICE_ID_FIR701    0x0701
 263 #endif
 264
 265 #ifndef PCI_DEVICE_ID_FIRD01
 266 #define PCI_DEVICE_ID_FIRD01    0x0d01
 267 #endif
 268
 269 struct OboeSlot
 270 {
 271   __u16 len;                    /*Tweleve bits of packet length */
 272   __u8 unused;
 273   __u8 control;                 /*Slot control/status see below */
 274   __u32 address;                /*Slot buffer address */
 275 }
 276 __packed;
 277
 278 #define OBOE_NTASKS OBOE_TXRING_OFFSET_IN_SLOTS
 279
 280 struct OboeRing
 281 {
 282   struct OboeSlot rx[OBOE_NTASKS];
 283   struct OboeSlot tx[OBOE_NTASKS];
 284 };
 285
 286 #define OBOE_RING_LEN (sizeof(struct OboeRing))
 287
 288
 289 #define OBOE_CTL_TX_HW_OWNS     0x80 /*W/R This slot owned by the hardware */
 290 #define OBOE_CTL_TX_DISTX_CRC   0x40 /*W Disable CRC generation for [FM]IR */
 291 #define OBOE_CTL_TX_BAD_CRC     0x20 /*W Generate bad CRC */
 292 #define OBOE_CTL_TX_SIP         0x10   /*W Generate an SIP after xmittion */
 293 #define OBOE_CTL_TX_MKUNDER     0x08 /*W Generate an underrun error */
 294 #define OBOE_CTL_TX_RTCENTX     0x04 /*W Enable receiver and generate TXdone */
 295      /*  After this slot is processed        */
 296 #define OBOE_CTL_TX_UNDER       0x01  /*R Set by hardware to indicate underrun */
 297
 298
 299 #define OBOE_CTL_RX_HW_OWNS     0x80 /*W/R This slot owned by hardware */
 300 #define OBOE_CTL_RX_PHYERR      0x40 /*R Decoder error on receiption */
 301 #define OBOE_CTL_RX_CRCERR      0x20 /*R CRC error only set for [FM]IR */
 302 #define OBOE_CTL_RX_LENGTH      0x10 /*R Packet > max Rx length  */
 303 #define OBOE_CTL_RX_OVER        0x08   /*R set to indicate an overflow */
 304 #define OBOE_CTL_RX_SIRBAD      0x04 /*R SIR had BOF in packet or ABORT sequence */
 305 #define OBOE_CTL_RX_RXEOF       0x02  /*R Finished receiving on this slot */
 306
 307
 308 struct toshoboe_cb
 309 {
 310   struct net_device *netdev;    /* Yes! we are some kind of netdevice */
 311   struct tty_driver ttydev;
 312
 313   struct irlap_cb *irlap;       /* The link layer we are binded to */
 314
 315   chipio_t io;                  /* IrDA controller information */
 316   struct qos_info qos;          /* QoS capabilities for this device */
 317
 318   __u32 flags;                  /* Interface flags */
 319
 320   struct pci_dev *pdev;         /*PCI device */
 321   int base;                     /*IO base */
 322
 323
 324   int txpending;                /*how many tx's are pending */
 325   int txs, rxs;                 /*Which slots are we at  */
 326
 327   int irdad;                    /*Driver under control of netdev end  */
 328   int async;                    /*Driver under control of async end   */
 329
 330
 331   int stopped;                  /*Stopped by some or other APM stuff */
 332
 333   int filter;                   /*In SIR mode do we want to receive
 334                                    frames or byte ranges */
 335
 336   void *ringbuf;                /*The ring buffer */
 337   struct OboeRing *ring;        /*The ring */
 338
 339   void *tx_bufs[OBOE_RING_MAX_SIZE]; /*The buffers   */
 340   void *rx_bufs[OBOE_RING_MAX_SIZE];
 341
 342
 343   int speed;                    /*Current setting of the speed */
 344   int new_speed;                /*Set to request a speed change */
 345
 346 /* The spinlock protect critical parts of the driver.
 347  *      Locking is done like this :
 348  *              spin_lock_irqsave(&self->spinlock, flags);
 349  *      Releasing the lock :
 350  *              spin_unlock_irqrestore(&self->spinlock, flags);
 351  */
 352   spinlock_t spinlock;
 353   /* Used for the probe and diagnostics code */
 354   int int_rx;
 355   int int_tx;
 356   int int_txunder;
 357   int int_rxover;
 358   int int_sip;
 359 };
 360
 361
 362 #endif