patch-2.2.11 linux/drivers/isdn/hisax/telespci.c

• Lines: 407
• Date: Mon Aug 9 12:04:39 1999
• Orig file: v2.2.10/linux/drivers/isdn/hisax/telespci.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.2.10/linux/drivers/isdn/hisax/telespci.c linux/drivers/isdn/hisax/telespci.c
@@ -0,0 +1,406 @@
+/* $Id: telespci.c,v 2.7 1999/07/12 21:05:34 keil Exp $
+
+ * telespci.c     low level stuff for Teles PCI isdn cards
+ *
+ * Author       Ton van Rosmalen 
+ *              Karsten Keil (keil@temic-ech.spacenet.de)
+ *
+ *
+ * $Log: telespci.c,v $
+ * Revision 2.7  1999/07/12 21:05:34  keil
+ * fix race in IRQ handling
+ * added watchdog for lost IRQs
+ *
+ * Revision 2.6  1999/07/01 08:12:15  keil
+ * Common HiSax version for 2.0, 2.1, 2.2 and 2.3 kernel
+ *
+ * Revision 2.5  1998/11/15 23:55:28  keil
+ * changes from 2.0
+ *
+ * Revision 2.4  1998/10/05 09:38:08  keil
+ * Fix register addressing
+ *
+ * Revision 2.3  1998/05/25 12:58:26  keil
+ * HiSax golden code from certification, Don't use !!!
+ * No leased lines, no X75, but many changes.
+ *
+ * Revision 2.1  1998/04/15 16:38:23  keil
+ * Add S0Box and Teles PCI support
+ *
+ *
+ */
+#define __NO_VERSION__
+#include <linux/config.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+#include <linux/pci.h>
+#ifndef COMPAT_HAS_NEW_PCI
+#include <linux/bios32.h>
+#endif
+
+extern const char *CardType[];
+const char *telespci_revision = "$Revision: 2.7 $";
+
+#define ZORAN_PO_RQ_PEN	0x02000000
+#define ZORAN_PO_WR	0x00800000
+#define ZORAN_PO_GID0	0x00000000
+#define ZORAN_PO_GID1	0x00100000
+#define ZORAN_PO_GREG0	0x00000000
+#define ZORAN_PO_GREG1	0x00010000
+#define ZORAN_PO_DMASK	0xFF
+
+#define WRITE_ADDR_ISAC	(ZORAN_PO_WR | ZORAN_PO_GID0 | ZORAN_PO_GREG0)
+#define READ_DATA_ISAC	(ZORAN_PO_GID0 | ZORAN_PO_GREG1)
+#define WRITE_DATA_ISAC	(ZORAN_PO_WR | ZORAN_PO_GID0 | ZORAN_PO_GREG1)
+#define WRITE_ADDR_HSCX	(ZORAN_PO_WR | ZORAN_PO_GID1 | ZORAN_PO_GREG0)
+#define READ_DATA_HSCX	(ZORAN_PO_GID1 | ZORAN_PO_GREG1)
+#define WRITE_DATA_HSCX	(ZORAN_PO_WR | ZORAN_PO_GID1 | ZORAN_PO_GREG1)
+
+#define ZORAN_WAIT_NOBUSY	do { \
+					portdata = readl(adr + 0x200); \
+				} while (portdata & ZORAN_PO_RQ_PEN)
+
+static inline u_char
+readisac(unsigned int adr, u_char off)
+{
+	register unsigned int portdata;
+
+	ZORAN_WAIT_NOBUSY;
+	
+	/* set address for ISAC */
+	writel(WRITE_ADDR_ISAC | off, adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+	
+	/* read data from ISAC */
+	writel(READ_DATA_ISAC, adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+	return((u_char)(portdata & ZORAN_PO_DMASK));
+}
+
+static inline void
+writeisac(unsigned int adr, u_char off, u_char data)
+{
+	register unsigned int portdata;
+
+	ZORAN_WAIT_NOBUSY;
+	
+	/* set address for ISAC */
+	writel(WRITE_ADDR_ISAC | off, adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+
+	/* write data to ISAC */
+	writel(WRITE_DATA_ISAC | data, adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+}
+
+static inline u_char
+readhscx(unsigned int adr, int hscx, u_char off)
+{
+	register unsigned int portdata;
+
+	ZORAN_WAIT_NOBUSY;
+	/* set address for HSCX */
+	writel(WRITE_ADDR_HSCX | ((hscx ? 0x40:0) + off), adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+	
+	/* read data from HSCX */
+	writel(READ_DATA_HSCX, adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+	return ((u_char)(portdata & ZORAN_PO_DMASK));
+}
+
+static inline void
+writehscx(unsigned int adr, int hscx, u_char off, u_char data)
+{
+	register unsigned int portdata;
+
+	ZORAN_WAIT_NOBUSY;
+	/* set address for HSCX */
+	writel(WRITE_ADDR_HSCX | ((hscx ? 0x40:0) + off), adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+
+	/* write data to HSCX */
+	writel(WRITE_DATA_HSCX | data, adr + 0x200);
+	ZORAN_WAIT_NOBUSY;
+}
+
+static inline void
+read_fifo_isac(unsigned int adr, u_char * data, int size)
+{
+	register unsigned int portdata;
+	register int i;
+
+	ZORAN_WAIT_NOBUSY;
+	/* read data from ISAC */
+	for (i = 0; i < size; i++) {
+		/* set address for ISAC fifo */
+		writel(WRITE_ADDR_ISAC | 0x1E, adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+		writel(READ_DATA_ISAC, adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+		data[i] = (u_char)(portdata & ZORAN_PO_DMASK);
+	}
+}
+
+static void
+write_fifo_isac(unsigned int adr, u_char * data, int size)
+{
+	register unsigned int portdata;
+	register int i;
+
+	ZORAN_WAIT_NOBUSY;
+	/* write data to ISAC */
+	for (i = 0; i < size; i++) {
+		/* set address for ISAC fifo */
+		writel(WRITE_ADDR_ISAC | 0x1E, adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+		writel(WRITE_DATA_ISAC | data[i], adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+	}
+}
+
+static inline void
+read_fifo_hscx(unsigned int adr, int hscx, u_char * data, int size)
+{
+	register unsigned int portdata;
+	register int i;
+
+	ZORAN_WAIT_NOBUSY;
+	/* read data from HSCX */
+	for (i = 0; i < size; i++) {
+		/* set address for HSCX fifo */
+		writel(WRITE_ADDR_HSCX |(hscx ? 0x5F:0x1F), adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+		writel(READ_DATA_HSCX, adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+		data[i] = (u_char) (portdata & ZORAN_PO_DMASK);
+	}
+}
+
+static inline void
+write_fifo_hscx(unsigned int adr, int hscx, u_char * data, int size)
+{
+	unsigned int portdata;
+	register int i;
+
+	ZORAN_WAIT_NOBUSY;
+	/* write data to HSCX */
+	for (i = 0; i < size; i++) {
+		/* set address for HSCX fifo */
+		writel(WRITE_ADDR_HSCX |(hscx ? 0x5F:0x1F), adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+		writel(WRITE_DATA_HSCX | data[i], adr + 0x200);
+		ZORAN_WAIT_NOBUSY;
+		udelay(10);
+	}
+}
+
+/* Interface functions */
+
+static u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+	return (readisac(cs->hw.teles0.membase, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writeisac(cs->hw.teles0.membase, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	read_fifo_isac(cs->hw.teles0.membase, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	write_fifo_isac(cs->hw.teles0.membase, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return (readhscx(cs->hw.teles0.membase, hscx, offset));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	writehscx(cs->hw.teles0.membase, hscx, offset, value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readhscx(cs->hw.teles0.membase, nr, reg)
+#define WRITEHSCX(cs, nr, reg, data) writehscx(cs->hw.teles0.membase, nr, reg, data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt)
+
+#include "hscx_irq.c"
+
+static void
+telespci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+#define MAXCOUNT 20
+	struct IsdnCardState *cs = dev_id;
+	u_char val;
+
+	if (!cs) {
+		printk(KERN_WARNING "TelesPCI: Spurious interrupt!\n");
+		return;
+	}
+	val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA);
+	if (val)
+		hscx_int_main(cs, val);
+	val = readisac(cs->hw.teles0.membase, ISAC_ISTA);
+	if (val)
+		isac_interrupt(cs, val);
+	/* Clear interrupt register for Zoran PCI controller */
+	writel(0x70000000, cs->hw.teles0.membase + 0x3C);
+
+	writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0xFF);
+	writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0xFF);
+	writeisac(cs->hw.teles0.membase, ISAC_MASK, 0xFF);
+	writeisac(cs->hw.teles0.membase, ISAC_MASK, 0x0);
+	writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0x0);
+	writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0x0);
+}
+
+void
+release_io_telespci(struct IsdnCardState *cs)
+{
+	iounmap((void *)cs->hw.teles0.membase);
+}
+
+static int
+TelesPCI_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	switch (mt) {
+		case CARD_RESET:
+			return(0);
+		case CARD_RELEASE:
+			release_io_telespci(cs);
+			return(0);
+		case CARD_INIT:
+			inithscxisac(cs, 3);
+			return(0);
+		case CARD_TEST:
+			return(0);
+	}
+	return(0);
+}
+
+#ifdef COMPAT_HAS_NEW_PCI
+static 	struct pci_dev *dev_tel __initdata = NULL;
+#else
+static 	int pci_index __initdata = 0;
+#endif
+
+__initfunc(int
+setup_telespci(struct IsdnCard *card))
+{
+	struct IsdnCardState *cs = card->cs;
+	char tmp[64];
+#ifndef COMPAT_HAS_NEW_PCI
+	u_char pci_bus, pci_device_fn, pci_irq;
+	u_int pci_memaddr;
+	u_char found = 0;
+#endif
+
+	strcpy(tmp, telespci_revision);
+	printk(KERN_INFO "HiSax: Teles/PCI driver Rev. %s\n", HiSax_getrev(tmp));
+	if (cs->typ != ISDN_CTYPE_TELESPCI)
+		return (0);
+#if CONFIG_PCI
+#ifdef COMPAT_HAS_NEW_PCI
+	if (!pci_present()) {
+		printk(KERN_ERR "TelesPCI: no PCI bus present\n");
+		return(0);
+	}
+	if ((dev_tel = pci_find_device (0x11DE, 0x6120, dev_tel))) {
+		cs->irq = dev_tel->irq;
+		if (!cs->irq) {
+			printk(KERN_WARNING "Teles: No IRQ for PCI card found\n");
+			return(0);
+		}
+		cs->hw.teles0.membase = (u_int) ioremap(dev_tel->base_address[0],
+			PAGE_SIZE);
+		printk(KERN_INFO "Found: Zoran, base-address: 0x%lx, irq: 0x%x\n",
+			dev_tel->base_address[0], dev_tel->irq);
+	} else {
+		printk(KERN_WARNING "TelesPCI: No PCI card found\n");
+		return(0);
+	}
+#else
+	for (; pci_index < 0xff; pci_index++) {
+		if (pcibios_find_device (0x11DE, 0x6120,
+			pci_index, &pci_bus, &pci_device_fn)
+			== PCIBIOS_SUCCESSFUL) {
+			found = 1;
+		} else {
+			break;
+		}
+		pcibios_read_config_dword(pci_bus, pci_device_fn,
+				PCI_BASE_ADDRESS_0, &pci_memaddr);
+		pcibios_read_config_byte(pci_bus, pci_device_fn,
+				PCI_INTERRUPT_LINE, &pci_irq);
+
+		printk(KERN_INFO "Found: Zoran, base-address: 0x%x,"
+			" irq: 0x%x\n", pci_memaddr, pci_irq);
+		break;
+	}
+	if (!found) {
+		printk(KERN_WARNING "TelesPCI: No PCI card found\n");
+		return(0);
+	}
+	pci_index++;
+	cs->irq = pci_irq;
+	cs->hw.teles0.membase = (u_int) vremap(pci_memaddr, PAGE_SIZE);
+#endif /* COMPAT_HAS_NEW_PCI */
+#else
+	printk(KERN_WARNING "HiSax: Teles/PCI and NO_PCI_BIOS\n");
+	printk(KERN_WARNING "HiSax: Teles/PCI unable to config\n");
+	return (0);
+#endif /* CONFIG_PCI */
+
+	/* Initialize Zoran PCI controller */
+	writel(0x00000000, cs->hw.teles0.membase + 0x28);
+	writel(0x01000000, cs->hw.teles0.membase + 0x28);
+	writel(0x01000000, cs->hw.teles0.membase + 0x28);
+	writel(0x7BFFFFFF, cs->hw.teles0.membase + 0x2C);
+	writel(0x70000000, cs->hw.teles0.membase + 0x3C);
+	writel(0x61000000, cs->hw.teles0.membase + 0x40);
+	/* writel(0x00800000, cs->hw.teles0.membase + 0x200); */
+
+	printk(KERN_INFO
+	       "HiSax: %s config irq:%d mem:%x\n",
+	       CardType[cs->typ], cs->irq,
+	       cs->hw.teles0.membase);
+
+	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 = &TelesPCI_card_msg;
+	cs->irq_func = &telespci_interrupt;
+	cs->irq_flags |= SA_SHIRQ;
+	ISACVersion(cs, "TelesPCI:");
+	if (HscxVersion(cs, "TelesPCI:")) {
+		printk(KERN_WARNING
+		 "TelesPCI: wrong HSCX versions check IO/MEM addresses\n");
+		release_io_telespci(cs);
+		return (0);
+	}
+	return (1);
+}