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

• Lines: 407
• Date: Sun Nov 15 10:32:58 1998
• Orig file: v2.0.35/linux/drivers/isdn/hisax/niccy.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.0.35/linux/drivers/isdn/hisax/niccy.c linux/drivers/isdn/hisax/niccy.c
@@ -0,0 +1,406 @@
+/* $Id: niccy.c,v 1.1.2.4 1998/04/16 19:18:19 keil Exp $
+
+ * niccy.c  low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and
+ *          compatible (SAGEM cybermodem)
+ *
+ * Author   Karsten Keil
+ * 
+ * Thanks to Dr. Neuhaus and SAGEM for informations
+ *
+ * $Log: niccy.c,v $
+ * Revision 1.1.2.4  1998/04/16 19:18:19  keil
+ * need config.h
+ *
+ * Revision 1.1.2.3  1998/04/08 22:05:26  keil
+ * Forgot PCI fix
+ *
+ * Revision 1.1.2.2  1998/04/08 21:48:23  keil
+ * New init; working Niccy PCI
+ *
+ * Revision 1.1.2.1  1998/02/11 14:23:20  keil
+ * support for Dr Neuhaus Niccy PnP and PCI
+ *
+ *
+ */
+
+
+#define __NO_VERSION__
+#include <linux/config.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+#include <linux/pci.h>
+#include <linux/bios32.h>
+
+extern const char *CardType[];
+const char *niccy_revision = "$Revision: 1.1.2.4 $";
+
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+#define ISAC_PCI_DATA	0
+#define HSCX_PCI_DATA	1
+#define ISAC_PCI_ADDR	2
+#define HSCX_PCI_ADDR	3
+#define ISAC_PNP	0
+#define HSCX_PNP	1
+
+/* SUB Types */
+#define NICCY_PNP	1
+#define NICCY_PCI	2
+
+/* PCI stuff */
+#define PCI_VENDOR_DR_NEUHAUS	0x1267
+#define PCI_NICCY_ID		0x1016
+#define PCI_IRQ_CTRL_REG	0x38
+#define PCI_IRQ_ENABLE		0x1f00
+#define PCI_IRQ_DISABLE		0xff0000
+#define PCI_IRQ_ASSERT		0x800000
+
+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.niccy.isac_ale, cs->hw.niccy.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return (readreg(cs->hw.niccy.hscx_ale,
+			cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	writereg(cs->hw.niccy.hscx_ale,
+		 cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
+}
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \
+		cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \
+		cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
+
+#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \
+		cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
+		cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#include "hscx_irq.c"
+
+static void
+niccy_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 "Niccy: Spurious interrupt!\n");
+		return;
+	}
+	if (cs->subtyp == NICCY_PCI) {
+		int ival;
+		ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+		if (!(ival & PCI_IRQ_ASSERT)) /* IRQ not for us (shared) */
+			return;
+		outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+	}
+	val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_ISTA + 0x40);
+      Start_HSCX:
+	if (val) {
+		hscx_int_main(cs, val);
+		stat |= 1;
+	}
+	val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
+      Start_ISAC:
+	if (val) {
+		isac_interrupt(cs, val);
+		stat |= 2;
+	}
+	val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.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.niccy.isac_ale, cs->hw.niccy.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.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
+		writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0xFF);
+		writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
+		writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0);
+	}
+	if (stat & 2) {
+		writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
+		writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
+	}
+}
+
+void
+release_io_niccy(struct IsdnCardState *cs)
+{
+	if (cs->subtyp == NICCY_PCI) {
+		int val;
+		
+		val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+		val &= PCI_IRQ_DISABLE;
+		outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+		release_region(cs->hw.niccy.cfg_reg, 0x80);
+		release_region(cs->hw.niccy.isac, 4);
+	} else {
+		release_region(cs->hw.niccy.isac, 2);
+		release_region(cs->hw.niccy.isac_ale, 2);
+	}
+}
+
+static void
+niccy_reset(struct IsdnCardState *cs)
+{
+	int val, nval;
+	
+	val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+	nval = val | PCI_IRQ_ENABLE;
+	outl(nval, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+
+	inithscxisac(cs, 3);
+}
+
+static int
+niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	int imode;
+	
+	switch (mt) {
+		case CARD_RESET:
+			niccy_reset(cs);
+			return(0);
+		case CARD_RELEASE:
+			release_io_niccy(cs);
+			return(0);
+		case CARD_SETIRQ:
+			if (cs->subtyp == NICCY_PCI)
+				imode = I4L_IRQ_FLAG | SA_SHIRQ;
+			else
+				imode = I4L_IRQ_FLAG;
+			return(request_irq(cs->irq, &niccy_interrupt,
+				imode, "HiSax", cs));
+			break;
+		case CARD_INIT:
+			niccy_reset(cs);
+			return(0);
+		case CARD_TEST:
+			return(0);
+	}
+	return(0);
+}
+
+static 	int pci_index __initdata = 0;
+
+__initfunc(int
+setup_niccy(struct IsdnCard *card))
+{
+	struct IsdnCardState *cs = card->cs;
+	char tmp[64];
+
+	strcpy(tmp, niccy_revision);
+	printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
+	if (cs->typ != ISDN_CTYPE_NICCY)
+		return (0);
+
+	if (card->para[1]) {
+		cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
+		cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
+		cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
+		cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
+		cs->hw.niccy.cfg_reg = 0;
+		cs->subtyp = NICCY_PNP;
+		cs->irq = card->para[0];
+		if (check_region((cs->hw.niccy.isac), 2)) {
+			printk(KERN_WARNING
+				"HiSax: %s data port %x-%x already in use\n",
+				CardType[card->typ],
+				cs->hw.niccy.isac,
+				cs->hw.niccy.isac + 1);
+			return (0);
+		} else
+			request_region(cs->hw.niccy.isac, 2, "niccy data");
+		if (check_region((cs->hw.niccy.isac_ale), 2)) {
+			printk(KERN_WARNING
+				"HiSax: %s address port %x-%x already in use\n",
+				CardType[card->typ],
+				cs->hw.niccy.isac_ale,
+				cs->hw.niccy.isac_ale + 1);
+			release_region(cs->hw.niccy.isac, 2);
+			return (0);
+		} else
+			request_region(cs->hw.niccy.isac_ale, 2, "niccy addr");
+	} else {
+#if CONFIG_PCI
+		u_char pci_bus, pci_device_fn, pci_irq;
+		u_int pci_ioaddr;
+
+		cs->subtyp = 0;
+		for (; pci_index < 0xff; pci_index++) {
+			if (pcibios_find_device(PCI_VENDOR_DR_NEUHAUS,
+			   PCI_NICCY_ID, pci_index, &pci_bus, &pci_device_fn)
+			   == PCIBIOS_SUCCESSFUL)
+				cs->subtyp = NICCY_PCI;
+			else
+				break;
+			/* get IRQ */
+			pcibios_read_config_byte(pci_bus, pci_device_fn,
+				PCI_INTERRUPT_LINE, &pci_irq);
+
+			/* get IO pci AMCC address */
+			pcibios_read_config_dword(pci_bus, pci_device_fn,
+				PCI_BASE_ADDRESS_0, &pci_ioaddr);
+			if (!pci_ioaddr) {
+				printk(KERN_WARNING "Niccy: No IO-Adr for PCI cfg found\n");
+				return(0);
+			}
+			cs->hw.niccy.cfg_reg = pci_ioaddr & ~3 ;
+			/* get IO address */
+			pcibios_read_config_dword(pci_bus, pci_device_fn,
+				PCI_BASE_ADDRESS_1, &pci_ioaddr);
+			if (cs->subtyp)
+				break;
+		}
+		if (!cs->subtyp) {
+			printk(KERN_WARNING "Niccy: No PCI card found\n");
+			return(0);
+		}
+		pci_index++;
+		if (!pci_irq) {
+			printk(KERN_WARNING "Niccy: No IRQ for PCI card found\n");
+			return(0);
+		}
+		if (!pci_ioaddr) {
+			printk(KERN_WARNING "Niccy: No IO-Adr for PCI card found\n");
+			return(0);
+		}
+		
+		pci_ioaddr &= ~3; /* remove io/mem flag */
+		cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
+		cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
+		cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
+		cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
+		cs->irq = pci_irq;
+		if (check_region((cs->hw.niccy.isac), 4)) {
+			printk(KERN_WARNING
+				"HiSax: %s data port %x-%x already in use\n",
+				CardType[card->typ],
+				cs->hw.niccy.isac,
+				cs->hw.niccy.isac + 4);
+			return (0);
+		} else
+			request_region(cs->hw.niccy.isac, 4, "niccy");
+		if (check_region(cs->hw.niccy.cfg_reg, 0x80)) {
+			printk(KERN_WARNING
+			       "HiSax: %s pci port %x-%x already in use\n",
+				CardType[card->typ],
+				cs->hw.niccy.cfg_reg,
+				cs->hw.niccy.cfg_reg + 0x80);
+			release_region(cs->hw.niccy.isac, 4);
+			return (0);
+		} else {
+			request_region(cs->hw.niccy.cfg_reg, 0x80, "niccy pci");
+		}
+#else
+		printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
+		printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
+		return (0);
+#endif /* CONFIG_PCI */
+	}
+	printk(KERN_INFO
+		"HiSax: %s %s config irq:%d data:0x%X ale:0x%X\n",
+		CardType[cs->typ], (cs->subtyp==1) ? "PnP":"PCI",
+		cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
+	cs->readisac = &ReadISAC;
+	cs->writeisac = &WriteISAC;
+	cs->readisacfifo = &ReadISACfifo;
+	cs->writeisacfifo = &WriteISACfifo;
+	cs->BC_Read_Reg = &ReadHSCX;
+	cs->BC_Write_Reg = &WriteHSCX;
+	cs->BC_Send_Data = &hscx_fill_fifo;
+	cs->cardmsg = &niccy_card_msg;
+	ISACVersion(cs, "Niccy:");
+	if (HscxVersion(cs, "Niccy:")) {
+		printk(KERN_WARNING
+		    "Niccy: wrong HSCX versions check IO address\n");
+		release_io_niccy(cs);
+		return (0);
+	}
+	return (1);
+}