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hfcscard.c

/* $Id: hfcscard.c,v 1.10.2.4 2004/01/14 16:04:48 keil Exp $
 *
 * low level stuff for hfcs based cards (Teles3c, ACER P10)
 *
 * Author       Karsten Keil
 * Copyright    by Karsten Keil      <keil@isdn4linux.de>
 * 
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

#include <linux/init.h>
#include <linux/isapnp.h>
#include "hisax.h"
#include "hfc_2bds0.h"
#include "isdnl1.h"

extern const char *CardType[];

static const char *hfcs_revision = "$Revision: 1.10.2.4 $";

static irqreturn_t
hfcs_interrupt(int intno, void *dev_id)
{
      struct IsdnCardState *cs = dev_id;
      u_char val, stat;
      u_long flags;

      spin_lock_irqsave(&cs->lock, flags);
      if ((HFCD_ANYINT | HFCD_BUSY_NBUSY) & 
            (stat = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_STAT))) {
            val = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_INT_S1);
            if (cs->debug & L1_DEB_ISAC)
                  debugl1(cs, "HFCS: stat(%02x) s1(%02x)", stat, val);
            hfc2bds0_interrupt(cs, val);
      } else {
            if (cs->debug & L1_DEB_ISAC)
                  debugl1(cs, "HFCS: irq_no_irq stat(%02x)", stat);
      }
      spin_unlock_irqrestore(&cs->lock, flags);
      return IRQ_HANDLED;
}

static void
hfcs_Timer(struct IsdnCardState *cs)
{
      cs->hw.hfcD.timer.expires = jiffies + 75;
      /* WD RESET */
/*    WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt | 0x80);
      add_timer(&cs->hw.hfcD.timer);
*/
}

static void
release_io_hfcs(struct IsdnCardState *cs)
{
      release2bds0(cs);
      del_timer(&cs->hw.hfcD.timer);
      if (cs->hw.hfcD.addr)
            release_region(cs->hw.hfcD.addr, 2);
}

static void
reset_hfcs(struct IsdnCardState *cs)
{
      printk(KERN_INFO "HFCS: resetting card\n");
      cs->hw.hfcD.cirm = HFCD_RESET;
      if (cs->typ == ISDN_CTYPE_TELES3C)
            cs->hw.hfcD.cirm |= HFCD_MEM8K;
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);     /* Reset On */
      mdelay(10);
      cs->hw.hfcD.cirm = 0;
      if (cs->typ == ISDN_CTYPE_TELES3C)
            cs->hw.hfcD.cirm |= HFCD_MEM8K;
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);     /* Reset Off */
      mdelay(10);
      if (cs->typ == ISDN_CTYPE_TELES3C)
            cs->hw.hfcD.cirm |= HFCD_INTB;
      else if (cs->typ == ISDN_CTYPE_ACERP10)
            cs->hw.hfcD.cirm |= HFCD_INTA;
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CLKDEL, 0x0e);
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_TEST, HFCD_AUTO_AWAKE); /* S/T Auto awake */
      cs->hw.hfcD.ctmt = HFCD_TIM25 | HFCD_AUTO_TIMER;
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
      cs->hw.hfcD.int_m2 = HFCD_IRQ_ENABLE;
      cs->hw.hfcD.int_m1 = HFCD_INTS_B1TRANS | HFCD_INTS_B2TRANS |
            HFCD_INTS_DTRANS | HFCD_INTS_B1REC | HFCD_INTS_B2REC |
            HFCD_INTS_DREC | HFCD_INTS_L1STATE;
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M1, cs->hw.hfcD.int_m1);
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M2, cs->hw.hfcD.int_m2);
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, HFCD_LOAD_STATE | 2); /* HFC ST 2 */
      udelay(10);
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, 2); /* HFC ST 2 */
      cs->hw.hfcD.mst_m = HFCD_MASTER;
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m); /* HFC Master */
      cs->hw.hfcD.sctrl = 0;
      cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_SCTRL, cs->hw.hfcD.sctrl);
}

static int
hfcs_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
      u_long flags;
      int delay;

      if (cs->debug & L1_DEB_ISAC)
            debugl1(cs, "HFCS: card_msg %x", mt);
      switch (mt) {
            case CARD_RESET:
                  spin_lock_irqsave(&cs->lock, flags);
                  reset_hfcs(cs);
                  spin_unlock_irqrestore(&cs->lock, flags);
                  return(0);
            case CARD_RELEASE:
                  release_io_hfcs(cs);
                  return(0);
            case CARD_INIT:
                  delay = (75*HZ)/100 +1;
                  mod_timer(&cs->hw.hfcD.timer, jiffies + delay);
                  spin_lock_irqsave(&cs->lock, flags);
                  reset_hfcs(cs);
                  init2bds0(cs);
                  spin_unlock_irqrestore(&cs->lock, flags);
                  delay = (80*HZ)/1000 +1;
                  msleep(80);
                  spin_lock_irqsave(&cs->lock, flags);
                  cs->hw.hfcD.ctmt |= HFCD_TIM800;
                  cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt); 
                  cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m);
                  spin_unlock_irqrestore(&cs->lock, flags);
                  return(0);
            case CARD_TEST:
                  return(0);
      }
      return(0);
}

#ifdef __ISAPNP__
static struct isapnp_device_id hfc_ids[] __devinitdata = {
      { ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114),
        ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114), 
        (unsigned long) "Acer P10" },
      { ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002),
        ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002), 
        (unsigned long) "Billion 2" },
      { ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001),
        ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001), 
        (unsigned long) "Billion 1" },
      { ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410),
        ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410), 
        (unsigned long) "IStar PnP" },
      { ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610),
        ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610), 
        (unsigned long) "Teles 16.3c" },
      { ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001),
        ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001), 
        (unsigned long) "Tornado Tipa C" },
      { ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001),
        ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001), 
        (unsigned long) "Genius Speed Surfer" },
      { 0, }
};

static struct isapnp_device_id *ipid __devinitdata = &hfc_ids[0];
static struct pnp_card *pnp_c __devinitdata = NULL;
#endif

int __devinit
setup_hfcs(struct IsdnCard *card)
{
      struct IsdnCardState *cs = card->cs;
      char tmp[64];

      strcpy(tmp, hfcs_revision);
      printk(KERN_INFO "HiSax: HFC-S driver Rev. %s\n", HiSax_getrev(tmp));

#ifdef __ISAPNP__
      if (!card->para[1] && isapnp_present()) {
            struct pnp_dev *pnp_d;
            while(ipid->card_vendor) {
                  if ((pnp_c = pnp_find_card(ipid->card_vendor,
                        ipid->card_device, pnp_c))) {
                        pnp_d = NULL;
                        if ((pnp_d = pnp_find_dev(pnp_c,
                              ipid->vendor, ipid->function, pnp_d))) {
                              int err;

                              printk(KERN_INFO "HiSax: %s detected\n",
                                    (char *)ipid->driver_data);
                              pnp_disable_dev(pnp_d);
                              err = pnp_activate_dev(pnp_d);
                              if (err<0) {
                                    printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
                                          __FUNCTION__, err);
                                    return(0);
                              }
                              card->para[1] = pnp_port_start(pnp_d, 0);
                              card->para[0] = pnp_irq(pnp_d, 0);
                              if (!card->para[0] || !card->para[1]) {
                                    printk(KERN_ERR "HFC PnP:some resources are missing %ld/%lx\n",
                                          card->para[0], card->para[1]);
                                    pnp_disable_dev(pnp_d);
                                    return(0);
                              }
                              break;
                        } else {
                              printk(KERN_ERR "HFC PnP: PnP error card found, no device\n");
                        }
                  }
                  ipid++;
                  pnp_c = NULL;
            } 
            if (!ipid->card_vendor) {
                  printk(KERN_INFO "HFC PnP: no ISAPnP card found\n");
                  return(0);
            }
      }
#endif
      cs->hw.hfcD.addr = card->para[1] & 0xfffe;
      cs->irq = card->para[0];
      cs->hw.hfcD.cip = 0;
      cs->hw.hfcD.int_s1 = 0;
      cs->hw.hfcD.send = NULL;
      cs->bcs[0].hw.hfc.send = NULL;
      cs->bcs[1].hw.hfc.send = NULL;
      cs->hw.hfcD.dfifosize = 512;
      cs->dc.hfcd.ph_state = 0;
      cs->hw.hfcD.fifo = 255;
      if (cs->typ == ISDN_CTYPE_TELES3C) {
            cs->hw.hfcD.bfifosize = 1024 + 512;
      } else if (cs->typ == ISDN_CTYPE_ACERP10) {
            cs->hw.hfcD.bfifosize = 7*1024 + 512;
      } else
            return (0);
      if (!request_region(cs->hw.hfcD.addr, 2, "HFCS isdn")) {
            printk(KERN_WARNING
                   "HiSax: %s config port %x-%x already in use\n",
                   CardType[card->typ],
                   cs->hw.hfcD.addr,
                   cs->hw.hfcD.addr + 2);
            return (0);
      }
      printk(KERN_INFO
             "HFCS: defined at 0x%x IRQ %d HZ %d\n",
             cs->hw.hfcD.addr,
             cs->irq, HZ);
      if (cs->typ == ISDN_CTYPE_TELES3C) {
            /* Teles 16.3c IO ADR is 0x200 | YY0U (YY Bit 15/14 address) */
            outb(0x00, cs->hw.hfcD.addr);
            outb(0x56, cs->hw.hfcD.addr | 1);
      } else if (cs->typ == ISDN_CTYPE_ACERP10) {
            /* Acer P10 IO ADR is 0x300 */
            outb(0x00, cs->hw.hfcD.addr);
            outb(0x57, cs->hw.hfcD.addr | 1);
      }
      set_cs_func(cs);
      cs->hw.hfcD.timer.function = (void *) hfcs_Timer;
      cs->hw.hfcD.timer.data = (long) cs;
      init_timer(&cs->hw.hfcD.timer);
      cs->cardmsg = &hfcs_card_msg;
      cs->irq_func = &hfcs_interrupt;
      return (1);
}

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