patch-2.0.36 linux/drivers/isdn/hisax/asuscom.c

• Lines: 408
• Date: Sun Nov 15 10:32:57 1998
• Orig file: v2.0.35/linux/drivers/isdn/hisax/asuscom.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.0.35/linux/drivers/isdn/hisax/asuscom.c linux/drivers/isdn/hisax/asuscom.c
@@ -0,0 +1,407 @@
+/* $Id: asuscom.c,v 1.1.2.4 1998/11/03 00:05:42 keil Exp $
+
+ * asuscom.c     low level stuff for ASUSCOM NETWORK INC. ISDNLink cards
+ *
+ * Author     Karsten Keil (keil@isdn4linux.de)
+ *
+ * Thanks to  ASUSCOM NETWORK INC. Taiwan and  Dynalink NL for informations
+ *
+ *
+ * $Log: asuscom.c,v $
+ * Revision 1.1.2.4  1998/11/03 00:05:42  keil
+ * certification related changes
+ * fixed logging for smaller stack use
+ *
+ * Revision 1.1.2.3  1998/06/18 23:10:26  keil
+ * Support for new IPAC card
+ *
+ * Revision 1.1.2.2  1998/04/08 21:58:37  keil
+ * New init code
+ *
+ * Revision 1.1.2.1  1998/01/27 22:34:02  keil
+ * dynalink ----> asuscom
+ *
+ *
+ */
+
+#define __NO_VERSION__
+#include "hisax.h"
+#include "isac.h"
+#include "ipac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+extern const char *CardType[];
+
+const char *Asuscom_revision = "$Revision: 1.1.2.4 $";
+
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+#define ASUS_ISAC	0
+#define ASUS_HSCX	1
+#define ASUS_ADR	2
+#define ASUS_CTRL_U7	3
+#define ASUS_CTRL_POTS	5
+
+#define ASUS_IPAC_ALE	0
+#define ASUS_IPAC_DATA	1
+
+#define ASUS_ISACHSCX	1
+#define ASUS_IPAC	2
+
+/* CARD_ADR (Write) */
+#define ASUS_RESET      0x80	/* Bit 7 Reset-Leitung */
+
+static inline u_char
+readreg(unsigned int ale, unsigned int adr, u_char off)
+{
+	register u_char ret;
+	long flags;
+
+	save_flags(flags);
+	cli();
+	byteout(ale, off);
+	ret = bytein(adr);
+	restore_flags(flags);
+	return (ret);
+}
+
+static inline void
+readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
+{
+	/* fifo read without cli because it's allready done  */
+
+	byteout(ale, off);
+	insb(adr, data, size);
+}
+
+
+static inline void
+writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
+{
+	long flags;
+
+	save_flags(flags);
+	cli();
+	byteout(ale, off);
+	byteout(adr, data);
+	restore_flags(flags);
+}
+
+static inline void
+writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
+{
+	/* fifo write without cli because it's allready done  */
+	byteout(ale, off);
+	outsb(adr, data, size);
+}
+
+/* Interface functions */
+
+static u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+	return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
+}
+
+static u_char
+ReadISAC_IPAC(struct IsdnCardState *cs, u_char offset)
+{
+	return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset|0x80));
+}
+
+static void
+WriteISAC_IPAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset|0x80, value);
+}
+
+static void
+ReadISACfifo_IPAC(struct IsdnCardState *cs, u_char * data, int size)
+{
+	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
+}
+
+static void
+WriteISACfifo_IPAC(struct IsdnCardState *cs, u_char * data, int size)
+{
+	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return (readreg(cs->hw.asus.adr,
+			cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	writereg(cs->hw.asus.adr,
+		 cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0), value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.asus.adr, \
+		cs->hw.asus.hscx, reg + (nr ? 0x40 : 0))
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.asus.adr, \
+		cs->hw.asus.hscx, reg + (nr ? 0x40 : 0), data)
+
+#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.asus.adr, \
+		cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.asus.adr, \
+		cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#include "hscx_irq.c"
+
+static void
+asuscom_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char val, stat = 0;
+
+	if (!cs) {
+		printk(KERN_WARNING "ISDNLink: Spurious interrupt!\n");
+		return;
+	}
+	val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
+      Start_HSCX:
+	if (val) {
+		hscx_int_main(cs, val);
+		stat |= 1;
+	}
+	val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
+      Start_ISAC:
+	if (val) {
+		isac_interrupt(cs, val);
+		stat |= 2;
+	}
+	val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
+	if (val) {
+		if (cs->debug & L1_DEB_HSCX)
+			debugl1(cs, "HSCX IntStat after IntRoutine");
+		goto Start_HSCX;
+	}
+	val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
+	if (val) {
+		if (cs->debug & L1_DEB_ISAC)
+			debugl1(cs, "ISAC IntStat after IntRoutine");
+		goto Start_ISAC;
+	}
+	if (stat & 1) {
+		writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0xFF);
+		writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0xFF);
+		writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0x0);
+		writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0x0);
+	}
+	if (stat & 2) {
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0xFF);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0x0);
+	}
+}
+
+static void
+asuscom_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char ista, val, icnt = 20;
+
+	if (!cs) {
+		printk(KERN_WARNING "ISDNLink: Spurious interrupt!\n");
+		return;
+	}
+	ista = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
+Start_IPAC:
+	if (cs->debug & L1_DEB_IPAC)
+		debugl1(cs, "IPAC ISTA %02X", ista);
+	if (ista & 0x0f) {
+		val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
+		if (ista & 0x01)
+			val |= 0x01;
+		if (ista & 0x04)
+			val |= 0x02;
+		if (ista & 0x08)
+			val |= 0x04;
+		if (val)
+			hscx_int_main(cs, val);
+	}
+	if (ista & 0x20) {
+		val = 0xfe & readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA | 0x80);
+		if (val) {
+			isac_interrupt(cs, val);
+		}
+	}
+	if (ista & 0x10) {
+		val = 0x01;
+		isac_interrupt(cs, val);
+	}
+	ista  = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
+	if ((ista & 0x3f) && icnt) {
+		icnt--;
+		goto Start_IPAC;
+	}
+	if (!icnt)
+		printk(KERN_WARNING "ASUS IRQ LOOP\n");
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xFF);
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xC0);
+}
+
+void
+release_io_asuscom(struct IsdnCardState *cs)
+{
+	int bytecnt = 8;
+
+	if (cs->hw.asus.cfg_reg)
+		release_region(cs->hw.asus.cfg_reg, bytecnt);
+}
+
+static void
+reset_asuscom(struct IsdnCardState *cs)
+{
+	long flags;
+
+	if (cs->subtyp == ASUS_IPAC)
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x20);
+	else
+		byteout(cs->hw.asus.adr, ASUS_RESET);	/* Reset On */
+	save_flags(flags);
+	sti();
+	current->state = TASK_INTERRUPTIBLE;
+	current->timeout = jiffies + 1;
+	schedule();
+	if (cs->subtyp == ASUS_IPAC)
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x0);
+	else
+		byteout(cs->hw.asus.adr, 0);	/* Reset Off */
+	current->state = TASK_INTERRUPTIBLE;
+	current->timeout = jiffies + 1;
+	schedule();
+	if (cs->subtyp == ASUS_IPAC) {
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_CONF, 0x0);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ACFG, 0xff);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_AOE, 0x0);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xc0);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_PCFG, 0x12);
+	}
+	restore_flags(flags);
+}
+
+static int
+Asus_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	switch (mt) {
+		case CARD_RESET:
+			reset_asuscom(cs);
+			return(0);
+		case CARD_RELEASE:
+			release_io_asuscom(cs);
+			return(0);
+		case CARD_SETIRQ:
+			if (cs->subtyp == ASUS_IPAC)
+				return(request_irq(cs->irq, &asuscom_interrupt_ipac,
+					I4L_IRQ_FLAG, "HiSax", cs));
+			else
+				return(request_irq(cs->irq, &asuscom_interrupt,
+					I4L_IRQ_FLAG, "HiSax", cs));
+		case CARD_INIT:
+			cs->debug |= L1_DEB_IPAC;
+			inithscxisac(cs, 3);
+			return(0);
+		case CARD_TEST:
+			return(0);
+	}
+	return(0);
+}
+
+__initfunc(int
+setup_asuscom(struct IsdnCard *card))
+{
+	int bytecnt;
+	struct IsdnCardState *cs = card->cs;
+	u_char val;
+	char tmp[64];
+
+	strcpy(tmp, Asuscom_revision);
+	printk(KERN_INFO "HiSax: Asuscom ISDNLink driver Rev. %s\n", HiSax_getrev(tmp));
+	if (cs->typ != ISDN_CTYPE_ASUSCOM)
+		return (0);
+
+	bytecnt = 8;
+	cs->hw.asus.cfg_reg = card->para[1];
+	cs->irq = card->para[0];
+	if (check_region((cs->hw.asus.cfg_reg), bytecnt)) {
+		printk(KERN_WARNING
+		       "HiSax: %s config port %x-%x already in use\n",
+		       CardType[card->typ],
+		       cs->hw.asus.cfg_reg,
+		       cs->hw.asus.cfg_reg + bytecnt);
+		return (0);
+	} else {
+		request_region(cs->hw.asus.cfg_reg, bytecnt, "asuscom isdn");
+	}
+	printk(KERN_INFO "ISDNLink: defined at 0x%x IRQ %d\n",
+		cs->hw.asus.cfg_reg, cs->irq);
+	cs->BC_Read_Reg = &ReadHSCX;
+	cs->BC_Write_Reg = &WriteHSCX;
+	cs->BC_Send_Data = &hscx_fill_fifo;
+	cs->cardmsg = &Asus_card_msg;
+	val = readreg(cs->hw.asus.cfg_reg + ASUS_IPAC_ALE, 
+		cs->hw.asus.cfg_reg + ASUS_IPAC_DATA, IPAC_ID);
+	if (val == 1) {
+		cs->subtyp = ASUS_IPAC;
+		cs->hw.asus.adr  = cs->hw.asus.cfg_reg + ASUS_IPAC_ALE;
+		cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
+		cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
+		test_and_set_bit(HW_IPAC, &cs->HW_Flags);
+		cs->readisac = &ReadISAC_IPAC;
+		cs->writeisac = &WriteISAC_IPAC;
+		cs->readisacfifo = &ReadISACfifo_IPAC;
+		cs->writeisacfifo = &WriteISACfifo_IPAC;
+		printk(KERN_INFO "Asus: IPAC version %x\n", val);
+	} else {
+		cs->subtyp = ASUS_ISACHSCX;
+		cs->hw.asus.adr = cs->hw.asus.cfg_reg + ASUS_ADR;
+		cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_ISAC;
+		cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_HSCX;
+		cs->hw.asus.u7 = cs->hw.asus.cfg_reg + ASUS_CTRL_U7;
+		cs->hw.asus.pots = cs->hw.asus.cfg_reg + ASUS_CTRL_POTS;
+		cs->readisac = &ReadISAC;
+		cs->writeisac = &WriteISAC;
+		cs->readisacfifo = &ReadISACfifo;
+		cs->writeisacfifo = &WriteISACfifo;
+		ISACVersion(cs, "ISDNLink:");
+		if (HscxVersion(cs, "ISDNLink:")) {
+			printk(KERN_WARNING
+		     	"ISDNLink: wrong HSCX versions check IO address\n");
+			release_io_asuscom(cs);
+			return (0);
+		}
+	}
+	printk(KERN_INFO "ISDNLink: resetting card\n");
+	reset_asuscom(cs);
+	return (1);
+}