drivers/isdn/hardware/mISDN/hfc_pci.h

   1 /*
   2  *  specific defines for CCD's HFC 2BDS0 PCI chips
   3  *
   4  * Author     Werner Cornelius (werner@isdn4linux.de)
   5  *
   6  * Copyright 1999  by Werner Cornelius (werner@isdn4linux.de)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23
  24 /*
  25  * thresholds for transparent B-channel mode
  26  * change mask and threshold simultaneously
  27  */
  28 #define HFCPCI_BTRANS_THRESHOLD 128
  29 #define HFCPCI_FILLEMPTY        64
  30 #define HFCPCI_BTRANS_THRESMASK 0x00
  31
  32 /* defines for PCI config */
  33 #define PCI_ENA_MEMIO           0x02
  34 #define PCI_ENA_MASTER          0x04
  35
  36 /* GCI/IOM bus monitor registers */
  37 #define HCFPCI_C_I              0x08
  38 #define HFCPCI_TRxR             0x0C
  39 #define HFCPCI_MON1_D           0x28
  40 #define HFCPCI_MON2_D           0x2C
  41
  42 /* GCI/IOM bus timeslot registers */
  43 #define HFCPCI_B1_SSL           0x80
  44 #define HFCPCI_B2_SSL           0x84
  45 #define HFCPCI_AUX1_SSL         0x88
  46 #define HFCPCI_AUX2_SSL         0x8C
  47 #define HFCPCI_B1_RSL           0x90
  48 #define HFCPCI_B2_RSL           0x94
  49 #define HFCPCI_AUX1_RSL         0x98
  50 #define HFCPCI_AUX2_RSL         0x9C
  51
  52 /* GCI/IOM bus data registers */
  53 #define HFCPCI_B1_D             0xA0
  54 #define HFCPCI_B2_D             0xA4
  55 #define HFCPCI_AUX1_D           0xA8
  56 #define HFCPCI_AUX2_D           0xAC
  57
  58 /* GCI/IOM bus configuration registers */
  59 #define HFCPCI_MST_EMOD         0xB4
  60 #define HFCPCI_MST_MODE         0xB8
  61 #define HFCPCI_CONNECT          0xBC
  62
  63
  64 /* Interrupt and status registers */
  65 #define HFCPCI_FIFO_EN          0x44
  66 #define HFCPCI_TRM              0x48
  67 #define HFCPCI_B_MODE           0x4C
  68 #define HFCPCI_CHIP_ID          0x58
  69 #define HFCPCI_CIRM             0x60
  70 #define HFCPCI_CTMT             0x64
  71 #define HFCPCI_INT_M1           0x68
  72 #define HFCPCI_INT_M2           0x6C
  73 #define HFCPCI_INT_S1           0x78
  74 #define HFCPCI_INT_S2           0x7C
  75 #define HFCPCI_STATUS           0x70
  76
  77 /* S/T section registers */
  78 #define HFCPCI_STATES           0xC0
  79 #define HFCPCI_SCTRL            0xC4
  80 #define HFCPCI_SCTRL_E          0xC8
  81 #define HFCPCI_SCTRL_R          0xCC
  82 #define HFCPCI_SQ               0xD0
  83 #define HFCPCI_CLKDEL           0xDC
  84 #define HFCPCI_B1_REC           0xF0
  85 #define HFCPCI_B1_SEND          0xF0
  86 #define HFCPCI_B2_REC           0xF4
  87 #define HFCPCI_B2_SEND          0xF4
  88 #define HFCPCI_D_REC            0xF8
  89 #define HFCPCI_D_SEND           0xF8
  90 #define HFCPCI_E_REC            0xFC
  91
  92
  93 /* bits in status register (READ) */
  94 #define HFCPCI_PCI_PROC         0x02
  95 #define HFCPCI_NBUSY            0x04
  96 #define HFCPCI_TIMER_ELAP       0x10
  97 #define HFCPCI_STATINT          0x20
  98 #define HFCPCI_FRAMEINT         0x40
  99 #define HFCPCI_ANYINT           0x80
 100
 101 /* bits in CTMT (Write) */
 102 #define HFCPCI_CLTIMER          0x80
 103 #define HFCPCI_TIM3_125         0x04
 104 #define HFCPCI_TIM25            0x10
 105 #define HFCPCI_TIM50            0x14
 106 #define HFCPCI_TIM400           0x18
 107 #define HFCPCI_TIM800           0x1C
 108 #define HFCPCI_AUTO_TIMER       0x20
 109 #define HFCPCI_TRANSB2          0x02
 110 #define HFCPCI_TRANSB1          0x01
 111
 112 /* bits in CIRM (Write) */
 113 #define HFCPCI_AUX_MSK          0x07
 114 #define HFCPCI_RESET            0x08
 115 #define HFCPCI_B1_REV           0x40
 116 #define HFCPCI_B2_REV           0x80
 117
 118 /* bits in INT_M1 and INT_S1 */
 119 #define HFCPCI_INTS_B1TRANS     0x01
 120 #define HFCPCI_INTS_B2TRANS     0x02
 121 #define HFCPCI_INTS_DTRANS      0x04
 122 #define HFCPCI_INTS_B1REC       0x08
 123 #define HFCPCI_INTS_B2REC       0x10
 124 #define HFCPCI_INTS_DREC        0x20
 125 #define HFCPCI_INTS_L1STATE     0x40
 126 #define HFCPCI_INTS_TIMER       0x80
 127
 128 /* bits in INT_M2 */
 129 #define HFCPCI_PROC_TRANS       0x01
 130 #define HFCPCI_GCI_I_CHG        0x02
 131 #define HFCPCI_GCI_MON_REC      0x04
 132 #define HFCPCI_IRQ_ENABLE       0x08
 133 #define HFCPCI_PMESEL           0x80
 134
 135 /* bits in STATES */
 136 #define HFCPCI_STATE_MSK        0x0F
 137 #define HFCPCI_LOAD_STATE       0x10
 138 #define HFCPCI_ACTIVATE         0x20
 139 #define HFCPCI_DO_ACTION        0x40
 140 #define HFCPCI_NT_G2_G3         0x80
 141
 142 /* bits in HFCD_MST_MODE */
 143 #define HFCPCI_MASTER           0x01
 144 #define HFCPCI_SLAVE            0x00
 145 #define HFCPCI_F0IO_POSITIV     0x02
 146 #define HFCPCI_F0_NEGATIV       0x04
 147 #define HFCPCI_F0_2C4           0x08
 148 /* remaining bits are for codecs control */
 149
 150 /* bits in HFCD_SCTRL */
 151 #define SCTRL_B1_ENA            0x01
 152 #define SCTRL_B2_ENA            0x02
 153 #define SCTRL_MODE_TE           0x00
 154 #define SCTRL_MODE_NT           0x04
 155 #define SCTRL_LOW_PRIO          0x08
 156 #define SCTRL_SQ_ENA            0x10
 157 #define SCTRL_TEST              0x20
 158 #define SCTRL_NONE_CAP          0x40
 159 #define SCTRL_PWR_DOWN          0x80
 160
 161 /* bits in SCTRL_E  */
 162 #define HFCPCI_AUTO_AWAKE       0x01
 163 #define HFCPCI_DBIT_1           0x04
 164 #define HFCPCI_IGNORE_COL       0x08
 165 #define HFCPCI_CHG_B1_B2        0x80
 166
 167 /* bits in FIFO_EN register */
 168 #define HFCPCI_FIFOEN_B1        0x03
 169 #define HFCPCI_FIFOEN_B2        0x0C
 170 #define HFCPCI_FIFOEN_DTX       0x10
 171 #define HFCPCI_FIFOEN_B1TX      0x01
 172 #define HFCPCI_FIFOEN_B1RX      0x02
 173 #define HFCPCI_FIFOEN_B2TX      0x04
 174 #define HFCPCI_FIFOEN_B2RX      0x08
 175
 176
 177 /* definitions of fifo memory area */
 178 #define MAX_D_FRAMES 15
 179 #define MAX_B_FRAMES 31
 180 #define B_SUB_VAL    0x200
 181 #define B_FIFO_SIZE  (0x2000 - B_SUB_VAL)
 182 #define D_FIFO_SIZE  512
 183 #define D_FREG_MASK  0xF
 184
 185 struct zt {
 186         __le16 z1;  /* Z1 pointer 16 Bit */
 187         __le16 z2;  /* Z2 pointer 16 Bit */
 188 };
 189
 190 struct dfifo {
 191         u_char data[D_FIFO_SIZE]; /* FIFO data space */
 192         u_char fill1[0x20A0 - D_FIFO_SIZE]; /* reserved, do not use */
 193         u_char f1, f2; /* f pointers */
 194         u_char fill2[0x20C0 - 0x20A2]; /* reserved, do not use */
 195         /* mask index with D_FREG_MASK for access */
 196         struct zt za[MAX_D_FRAMES + 1];
 197         u_char fill3[0x4000 - 0x2100]; /* align 16K */
 198 };
 199
 200 struct bzfifo {
 201         struct zt       za[MAX_B_FRAMES + 1]; /* only range 0x0..0x1F allowed */
 202         u_char          f1, f2; /* f pointers */
 203         u_char          fill[0x2100 - 0x2082]; /* alignment */
 204 };
 205
 206
 207 union fifo_area {
 208         struct {
 209                 struct dfifo d_tx; /* D-send channel */
 210                 struct dfifo d_rx; /* D-receive channel */
 211         } d_chan;
 212         struct {
 213                 u_char          fill1[0x200];
 214                 u_char          txdat_b1[B_FIFO_SIZE];
 215                 struct bzfifo   txbz_b1;
 216                 struct bzfifo   txbz_b2;
 217                 u_char          txdat_b2[B_FIFO_SIZE];
 218                 u_char          fill2[D_FIFO_SIZE];
 219                 u_char          rxdat_b1[B_FIFO_SIZE];
 220                 struct bzfifo   rxbz_b1;
 221                 struct bzfifo   rxbz_b2;
 222                 u_char rxdat_b2[B_FIFO_SIZE];
 223         } b_chans;
 224         u_char fill[32768];
 225 };
 226
 227 #define Write_hfc(a, b, c) (writeb(c, (a->hw.pci_io) + b))
 228 #define Read_hfc(a, b) (readb((a->hw.pci_io) + b))