drivers/isdn/sc/hardware.h

   1 /*
   2  * Hardware specific macros, defines and structures
   3  *
   4  * This software may be used and distributed according to the terms
   5  * of the GNU General Public License, incorporated herein by reference.
   6  *
   7  */
   8
   9 #ifndef HARDWARE_H
  10 #define HARDWARE_H
  11
  12 #include <asm/param.h>                  /* For HZ */
  13
  14 /*
  15  * General hardware parameters common to all ISA adapters
  16  */
  17
  18 #define MAX_CARDS       4               /* The maximum number of cards to
  19                                            control or probe for. */
  20
  21 #define SIGNATURE       0x87654321      /* Board reset signature */
  22 #define SIG_OFFSET      0x1004          /* Where to find signature in shared RAM */
  23 #define TRACE_OFFSET    0x1008          /* Trace enable word offset in shared RAM */
  24 #define BUFFER_OFFSET   0x1800          /* Beginning of buffers */
  25
  26 /* I/O Port parameters */
  27 #define IOBASE_MIN      0x180           /* Lowest I/O port address */
  28 #define IOBASE_MAX      0x3C0           /* Highest I/O port address */
  29 #define IOBASE_OFFSET   0x20            /* Inter-board I/O port gap used during
  30                                            probing */
  31 #define FIFORD_OFFSET   0x0
  32 #define FIFOWR_OFFSET   0x400
  33 #define FIFOSTAT_OFFSET 0x1000
  34 #define RESET_OFFSET    0x2800
  35 #define PG0_OFFSET      0x3000          /* Offset from I/O Base for Page 0 register */
  36 #define PG1_OFFSET      0x3400          /* Offset from I/O Base for Page 1 register */
  37 #define PG2_OFFSET      0x3800          /* Offset from I/O Base for Page 2 register */
  38 #define PG3_OFFSET      0x3C00          /* Offset from I/O Base for Page 3 register */
  39
  40 #define FIFO_READ       0               /* FIFO Read register */
  41 #define FIFO_WRITE      1               /* FIFO Write rgister */
  42 #define LO_ADDR_PTR     2               /* Extended RAM Low Addr Pointer */
  43 #define HI_ADDR_PTR     3               /* Extended RAM High Addr Pointer */
  44 #define NOT_USED_1      4
  45 #define FIFO_STATUS     5               /* FIFO Status Register */
  46 #define NOT_USED_2      6
  47 #define MEM_OFFSET      7
  48 #define SFT_RESET       10              /* Reset Register */
  49 #define EXP_BASE        11              /* Shared RAM Base address */
  50 #define EXP_PAGE0       12              /* Shared RAM Page0 register */
  51 #define EXP_PAGE1       13              /* Shared RAM Page1 register */
  52 #define EXP_PAGE2       14              /* Shared RAM Page2 register */
  53 #define EXP_PAGE3       15              /* Shared RAM Page3 register */
  54 #define IRQ_SELECT      16              /* IRQ selection register */
  55 #define MAX_IO_REGS     17              /* Total number of I/O ports */
  56
  57 /* FIFO register values */
  58 #define RF_HAS_DATA     0x01            /* fifo has data */
  59 #define RF_QUART_FULL   0x02            /* fifo quarter full */
  60 #define RF_HALF_FULL    0x04            /* fifo half full */
  61 #define RF_NOT_FULL     0x08            /* fifo not full */
  62 #define WF_HAS_DATA     0x10            /* fifo has data */
  63 #define WF_QUART_FULL   0x20            /* fifo quarter full */
  64 #define WF_HALF_FULL    0x40            /* fifo half full */
  65 #define WF_NOT_FULL     0x80            /* fifo not full */
  66
  67 /* Shared RAM parameters */
  68 #define SRAM_MIN        0xC0000         /* Lowest host shared RAM address */
  69 #define SRAM_MAX        0xEFFFF         /* Highest host shared RAM address */
  70 #define SRAM_PAGESIZE   0x4000          /* Size of one RAM page (16K) */
  71
  72 /* Shared RAM buffer parameters */
  73 #define BUFFER_SIZE     0x800           /* The size of a buffer in bytes */
  74 #define BUFFER_BASE     BUFFER_OFFSET   /* Offset from start of shared RAM
  75                                            where buffer start */
  76 #define BUFFERS_MAX     16              /* Maximum number of send/receive
  77                                            buffers per channel */
  78 #define HDLC_PROTO      0x01            /* Frame Format for Layer 2 */
  79
  80 #define BRI_BOARD       0
  81 #define POTS_BOARD      1
  82 #define PRI_BOARD       2
  83
  84 /*
  85  * Specific hardware parameters for the DataCommute/BRI
  86  */
  87 #define BRI_CHANNELS    2               /* Number of B channels */
  88 #define BRI_BASEPG_VAL  0x98
  89 #define BRI_MAGIC       0x60000         /* Magic Number */
  90 #define BRI_MEMSIZE     0x10000         /* Amount of RAM (64K) */
  91 #define BRI_PARTNO      "72-029"
  92 #define BRI_FEATURES    ISDN_FEATURE_L2_HDLC | ISDN_FEATURE_L3_TRANS;
  93 /*
  94  * Specific hardware parameters for the DataCommute/PRI
  95  */
  96 #define PRI_CHANNELS    23              /* Number of B channels */
  97 #define PRI_BASEPG_VAL  0x88
  98 #define PRI_MAGIC       0x20000         /* Magic Number */
  99 #define PRI_MEMSIZE     0x100000        /* Amount of RAM (1M) */
 100 #define PRI_PARTNO      "72-030"
 101 #define PRI_FEATURES    ISDN_FEATURE_L2_HDLC | ISDN_FEATURE_L3_TRANS;
 102
 103 /*
 104  * Some handy macros
 105  */
 106
 107 /* Determine if a channel number is valid for the adapter */
 108 #define IS_VALID_CHANNEL(y,x)   ((x>0) && (x <= sc_adapter[y]->channels))
 109
 110 #endif