drivers/net/wan/cosa.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /* $Id: cosa.h,v 1.6 1999/01/06 14:02:44 kas Exp $ */
   3
   4 /*
   5  *  Copyright (C) 1995-1997  Jan "Yenya" Kasprzak <kas@fi.muni.cz>
   6  */
   7
   8 #ifndef COSA_H__
   9 #define COSA_H__
  10
  11 #include <linux/ioctl.h>
  12
  13 #ifdef __KERNEL__
  14 /* status register - output bits */
  15 #define SR_RX_DMA_ENA   0x04    /* receiver DMA enable bit */
  16 #define SR_TX_DMA_ENA   0x08    /* transmitter DMA enable bit */
  17 #define SR_RST          0x10    /* SRP reset */
  18 #define SR_USR_INT_ENA  0x20    /* user interrupt enable bit */
  19 #define SR_TX_INT_ENA   0x40    /* transmitter interrupt enable bit */
  20 #define SR_RX_INT_ENA   0x80    /* receiver interrupt enable bit */
  21
  22 /* status register - input bits */
  23 #define SR_USR_RQ       0x20    /* user interrupt request pending */
  24 #define SR_TX_RDY       0x40    /* transmitter empty (ready) */
  25 #define SR_RX_RDY       0x80    /* receiver data ready */
  26
  27 #define SR_UP_REQUEST   0x02    /* request from SRP to transfer data
  28                                    up to PC */
  29 #define SR_DOWN_REQUEST 0x01    /* SRP is able to transfer data down
  30                                    from PC to SRP */
  31 #define SR_END_OF_TRANSFER      0x03    /* SRP signalize end of
  32                                            transfer (up or down) */
  33
  34 #define SR_CMD_FROM_SRP_MASK    0x03    /* mask to get SRP command */
  35
  36 /* bits in driver status byte definitions : */
  37 #define SR_RDY_RCV      0x01    /* ready to receive packet */
  38 #define SR_RDY_SND      0x02    /* ready to send packet */
  39 #define SR_CMD_PND      0x04    /* command pending */ /* not currently used */
  40
  41 /* ???? */
  42 #define SR_PKT_UP       0x01    /* transfer of packet up in progress */
  43 #define SR_PKT_DOWN     0x02    /* transfer of packet down in progress */
  44
  45 #endif /* __KERNEL__ */
  46
  47 #define SR_LOAD_ADDR    0x4400  /* SRP microcode load address */
  48 #define SR_START_ADDR   0x4400  /* SRP microcode start address */
  49
  50 #define COSA_LOAD_ADDR    0x400  /* SRP microcode load address */
  51 #define COSA_MAX_FIRMWARE_SIZE  0x10000
  52
  53 /* ioctls */
  54 struct cosa_download {
  55         int addr, len;
  56         char __user *code;
  57 };
  58
  59 /* Reset the device */
  60 #define COSAIORSET      _IO('C',0xf0)
  61
  62 /* Start microcode at given address */
  63 #define COSAIOSTRT      _IOW('C',0xf1, int)
  64
  65 /* Read the block from the device memory */
  66 #define COSAIORMEM      _IOWR('C',0xf2, struct cosa_download *)
  67         /* actually the struct cosa_download itself; this is to keep
  68          * the ioctl number same as in 2.4 in order to keep the user-space
  69          * utils compatible. */
  70
  71 /* Write the block to the device memory (i.e. download the microcode) */
  72 #define COSAIODOWNLD    _IOW('C',0xf2, struct cosa_download *)
  73         /* actually the struct cosa_download itself; this is to keep
  74          * the ioctl number same as in 2.4 in order to keep the user-space
  75          * utils compatible. */
  76
  77 /* Read the device type (one of "srp", "cosa", and "cosa8" for now) */
  78 #define COSAIORTYPE     _IOR('C',0xf3, char *)
  79
  80 /* Read the device identification string */
  81 #define COSAIORIDSTR    _IOR('C',0xf4, char *)
  82 /* Maximum length of the identification string. */
  83 #define COSA_MAX_ID_STRING 128
  84
  85 /* Increment/decrement the module usage count :-) */
  86 /* #define COSAIOMINC   _IO('C',0xf5) */
  87 /* #define COSAIOMDEC   _IO('C',0xf6) */
  88
  89 /* Get the total number of cards installed */
  90 #define COSAIONRCARDS   _IO('C',0xf7)
  91
  92 /* Get the number of channels on this card */
  93 #define COSAIONRCHANS   _IO('C',0xf8)
  94
  95 /* Set the driver for the bus-master operations */
  96 #define COSAIOBMSET     _IOW('C', 0xf9, unsigned short)
  97
  98 #define COSA_BM_OFF     0       /* Bus-mastering off - use ISA DMA (default) */
  99 #define COSA_BM_ON      1       /* Bus-mastering on - faster but untested */
 100
 101 /* Gets the busmaster status */
 102 #define COSAIOBMGET     _IO('C', 0xfa)
 103
 104 #endif /* !COSA_H__ */