patch-2.3.14 linux/drivers/isdn/hisax/hfcscard.c

• Lines: 207
• Date: Thu Aug 12 09:42:33 1999
• Orig file: v2.3.13/linux/drivers/isdn/hisax/hfcscard.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.13/linux/drivers/isdn/hisax/hfcscard.c linux/drivers/isdn/hisax/hfcscard.c
@@ -0,0 +1,206 @@
+/* $Id: hfcscard.c,v 1.4 1999/08/09 18:59:59 keil Exp $
+
+ * hfcscard.c     low level stuff for hfcs based cards (Teles3c, ACER P10)
+ *
+ * Author     Karsten Keil (keil@isdn4linux.de)
+ *
+ *
+ * $Log: hfcscard.c,v $
+ * Revision 1.4  1999/08/09 18:59:59  keil
+ * Fix S0 init - Thanks to Stefan Gybas
+ *
+ * Revision 1.3  1999/07/12 21:05:12  keil
+ * fix race in IRQ handling
+ * added watchdog for lost IRQs
+ *
+ * Revision 1.2  1999/07/01 08:16:03  keil
+ * teles3c ---> hfcscard
+ *
+ *
+ *
+ */
+
+#define __NO_VERSION__
+#include "hisax.h"
+#include "hfc_2bds0.h"
+#include "isdnl1.h"
+
+extern const char *CardType[];
+
+static const char *hfcs_revision = "$Revision: 1.4 $";
+
+static void
+hfcs_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char val, stat;
+
+	if (!cs) {
+		printk(KERN_WARNING "HFCS: Spurious interrupt!\n");
+		return;
+	}
+	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);
+	}
+}
+
+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);
+*/
+}
+
+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)
+{
+	long flags;
+
+	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 */
+	save_flags(flags);
+	sti();
+	current->state = TASK_INTERRUPTIBLE;
+	schedule_timeout((30*HZ)/1000);
+	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 */
+	current->state = TASK_INTERRUPTIBLE;
+	schedule_timeout((10*HZ)/1000);
+	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);
+	restore_flags(flags);
+}
+
+static int
+hfcs_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	long flags;
+
+	if (cs->debug & L1_DEB_ISAC)
+		debugl1(cs, "HFCS: card_msg %x", mt);
+	switch (mt) {
+		case CARD_RESET:
+			reset_hfcs(cs);
+			return(0);
+		case CARD_RELEASE:
+			release_io_hfcs(cs);
+			return(0);
+		case CARD_INIT:
+			cs->hw.hfcD.timer.expires = jiffies + 75;
+			add_timer(&cs->hw.hfcD.timer);
+			init2bds0(cs);
+			save_flags(flags);
+			sti();
+			current->state = TASK_INTERRUPTIBLE;
+			schedule_timeout((80*HZ)/1000);
+			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);
+			restore_flags(flags);
+			return(0);
+		case CARD_TEST:
+			return(0);
+	}
+	return(0);
+}
+
+__initfunc(int
+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));
+	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 (check_region((cs->hw.hfcD.addr), 2)) {
+		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);
+	} else {
+		request_region(cs->hw.hfcD.addr, 2, "HFCS isdn");
+	}
+	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);
+	reset_hfcs(cs);
+	cs->cardmsg = &hfcs_card_msg;
+	cs->irq_func = &hfcs_interrupt;
+	return (1);
+}