drivers/isdn/hisax/teles3c.c

   1 /* $Id: teles3c.c,v 1.3 1998/11/15 23:55:27 keil Exp $
   2
   3  * teles3c.c     low level stuff for teles 16.3c
   4  *
   5  * Author     Karsten Keil (keil@isdn4linux.de)
   6  *
   7  *
   8  * $Log: teles3c.c,v $
   9  * Revision 1.3  1998/11/15 23:55:27  keil
  10  * changes from 2.0
  11  *
  12  * Revision 1.2  1998/02/02 13:27:07  keil
  13  * New
  14  *
  15  *
  16  *
  17  */
  18
  19 #define __NO_VERSION__
  20 #include "hisax.h"
  21 #include "hfc_2bds0.h"
  22 #include "isdnl1.h"
  23
  24 extern const char *CardType[];
  25
  26 const char *teles163c_revision = "$Revision: 1.3 $";
  27
  28 static void
  29 t163c_interrupt(int intno, void *dev_id, struct pt_regs *regs)
  30 {
  31         struct IsdnCardState *cs = dev_id;
  32         u_char val, stat;
  33
  34         if (!cs) {
  35                 printk(KERN_WARNING "teles3c: Spurious interrupt!\n");
  36                 return;
  37         }
  38         if ((HFCD_ANYINT | HFCD_BUSY_NBUSY) &
  39                 (stat = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_STAT))) {
  40                 val = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_INT_S1);
  41                 if (cs->debug & L1_DEB_ISAC)
  42                         debugl1(cs, "teles3c: stat(%02x) s1(%02x)", stat, val);
  43                 hfc2bds0_interrupt(cs, val);
  44         } else {
  45                 if (cs->debug & L1_DEB_ISAC)
  46                         debugl1(cs, "teles3c: irq_no_irq stat(%02x)", stat);
  47         }
  48 }
  49
  50 static void
  51 t163c_Timer(struct IsdnCardState *cs)
  52 {
  53         cs->hw.hfcD.timer.expires = jiffies + 75;
  54         /* WD RESET */
  55 /*      WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt | 0x80);
  56         add_timer(&cs->hw.hfcD.timer);
  57 */
  58 }
  59
  60 void
  61 release_io_t163c(struct IsdnCardState *cs)
  62 {
  63         release2bds0(cs);
  64         del_timer(&cs->hw.hfcD.timer);
  65         if (cs->hw.hfcD.addr)
  66                 release_region(cs->hw.hfcD.addr, 2);
  67 }
  68
  69 static void
  70 reset_t163c(struct IsdnCardState *cs)
  71 {
  72         long flags;
  73
  74         printk(KERN_INFO "teles3c: resetting card\n");
  75         cs->hw.hfcD.cirm = HFCD_RESET | HFCD_MEM8K;
  76         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);   /* Reset On */
  77         save_flags(flags);
  78         sti();
  79         current->state = TASK_INTERRUPTIBLE;
  80         schedule_timeout(3);
  81         cs->hw.hfcD.cirm = HFCD_MEM8K;
  82         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);   /* Reset Off */
  83         current->state = TASK_INTERRUPTIBLE;
  84         schedule_timeout(1);
  85         cs->hw.hfcD.cirm |= HFCD_INTB;
  86         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);   /* INT B */
  87         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CLKDEL, 0x0e);
  88         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_TEST, HFCD_AUTO_AWAKE); /* S/T Auto awake */
  89         cs->hw.hfcD.ctmt = HFCD_TIM25 | HFCD_AUTO_TIMER;
  90         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
  91         cs->hw.hfcD.int_m2 = HFCD_IRQ_ENABLE;
  92         cs->hw.hfcD.int_m1 = HFCD_INTS_B1TRANS | HFCD_INTS_B2TRANS |
  93                 HFCD_INTS_DTRANS | HFCD_INTS_B1REC | HFCD_INTS_B2REC |
  94                 HFCD_INTS_DREC | HFCD_INTS_L1STATE;
  95         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M1, cs->hw.hfcD.int_m1);
  96         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M2, cs->hw.hfcD.int_m2);
  97         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, HFCD_LOAD_STATE | 2); /* HFC ST 2 */
  98         udelay(10);
  99         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, 2); /* HFC ST 2 */
 100         cs->hw.hfcD.mst_m = 0;
 101         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, HFCD_MASTER); /* HFC Master */
 102         cs->hw.hfcD.sctrl = 0;
 103         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_SCTRL, cs->hw.hfcD.sctrl);
 104         restore_flags(flags);
 105 }
 106
 107 static int
 108 t163c_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 109 {
 110         long flags;
 111
 112         if (cs->debug & L1_DEB_ISAC)
 113                 debugl1(cs, "teles3c: card_msg %x", mt);
 114         switch (mt) {
 115                 case CARD_RESET:
 116                         reset_t163c(cs);
 117                         return(0);
 118                 case CARD_RELEASE:
 119                         release_io_t163c(cs);
 120                         return(0);
 121                 case CARD_SETIRQ:
 122                         cs->hw.hfcD.timer.expires = jiffies + 75;
 123                         add_timer(&cs->hw.hfcD.timer);
 124                         return(request_irq(cs->irq, &t163c_interrupt,
 125                                         I4L_IRQ_FLAG, "HiSax", cs));
 126                 case CARD_INIT:
 127                         init2bds0(cs);
 128                         save_flags(flags);
 129                         sti();
 130                         current->state = TASK_INTERRUPTIBLE;
 131                         schedule_timeout((80*HZ)/1000);
 132                         cs->hw.hfcD.ctmt |= HFCD_TIM800;
 133                         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
 134                         cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m);
 135                         restore_flags(flags);
 136                         return(0);
 137                 case CARD_TEST:
 138                         return(0);
 139         }
 140         return(0);
 141 }
 142
 143 int __init
 144 setup_t163c(struct IsdnCard *card)
 145 {
 146         struct IsdnCardState *cs = card->cs;
 147         char tmp[64];
 148
 149         strcpy(tmp, teles163c_revision);
 150         printk(KERN_INFO "HiSax: Teles 16.3c driver Rev. %s\n", HiSax_getrev(tmp));
 151         if (cs->typ != ISDN_CTYPE_TELES3C)
 152                 return (0);
 153         cs->debug = 0xff;
 154         cs->hw.hfcD.addr = card->para[1] & 0xfffe;
 155         cs->irq = card->para[0];
 156         cs->hw.hfcD.cip = 0;
 157         cs->hw.hfcD.int_s1 = 0;
 158         cs->hw.hfcD.send = NULL;
 159         cs->bcs[0].hw.hfc.send = NULL;
 160         cs->bcs[1].hw.hfc.send = NULL;
 161         cs->hw.hfcD.bfifosize = 1024 + 512;
 162         cs->hw.hfcD.dfifosize = 512;
 163         cs->ph_state = 0;
 164         cs->hw.hfcD.fifo = 255;
 165         if (check_region((cs->hw.hfcD.addr), 2)) {
 166                 printk(KERN_WARNING
 167                        "HiSax: %s config port %x-%x already in use\n",
 168                        CardType[card->typ],
 169                        cs->hw.hfcD.addr,
 170                        cs->hw.hfcD.addr + 2);
 171                 return (0);
 172         } else {
 173                 request_region(cs->hw.hfcD.addr, 2, "teles3c isdn");
 174         }
 175         /* Teles 16.3c IO ADR is 0x200 | YY0U (YY Bit 15/14 address) */
 176         outb(0x00, cs->hw.hfcD.addr);
 177         outb(0x56, cs->hw.hfcD.addr | 1);
 178         printk(KERN_INFO
 179                "teles3c: defined at 0x%x IRQ %d HZ %d\n",
 180                cs->hw.hfcD.addr,
 181                cs->irq, HZ);
 182
 183         set_cs_func(cs);
 184         cs->hw.hfcD.timer.function = (void *) t163c_Timer;
 185         cs->hw.hfcD.timer.data = (long) cs;
 186         init_timer(&cs->hw.hfcD.timer);
 187         reset_t163c(cs);
 188         cs->cardmsg = &t163c_card_msg;
 189         return (1);
 190 }