patch-2.1.92 linux/drivers/isdn/hisax/sportster.c

• Lines: 292
• Date: Wed Apr 1 16:21:02 1998
• Orig file: v2.1.91/linux/drivers/isdn/hisax/sportster.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.91/linux/drivers/isdn/hisax/sportster.c linux/drivers/isdn/hisax/sportster.c
@@ -0,0 +1,291 @@
+/* $Id: sportster.c,v 1.5 1998/02/02 13:29:46 keil Exp $
+
+ * sportster.c     low level stuff for USR Sportster internal TA
+ *
+ * Author       Karsten Keil (keil@temic-ech.spacenet.de)
+ *
+ * Thanks to Christian "naddy" Weisgerber (3Com, US Robotics) for documentation
+ *
+ * $Log: sportster.c,v $
+ * Revision 1.5  1998/02/02 13:29:46  keil
+ * fast io
+ *
+ * Revision 1.4  1997/11/08 21:35:52  keil
+ * new l1 init
+ *
+ * Revision 1.3  1997/11/06 17:09:29  keil
+ * New 2.1 init code
+ *
+ * Revision 1.2  1997/10/29 18:51:18  keil
+ * New files
+ *
+ * Revision 1.1.2.1  1997/10/17 22:10:58  keil
+ * new files on 2.0
+ *
+ */
+#define __NO_VERSION__
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+extern const char *CardType[];
+const char *sportster_revision = "$Revision: 1.5 $";
+
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+#define	 SPORTSTER_ISAC		0xC000
+#define	 SPORTSTER_HSCXA	0x0000
+#define	 SPORTSTER_HSCXB	0x4000
+#define	 SPORTSTER_RES_IRQ	0x8000
+#define	 SPORTSTER_RESET	0x80
+#define	 SPORTSTER_INTE		0x40
+
+static inline int
+calc_off(unsigned int base, unsigned int off)
+{
+	return(base + ((off & 0xfc)<<8) + ((off & 3)<<1));
+}
+
+static inline void
+read_fifo(unsigned int adr, u_char * data, int size)
+{
+	insb(adr, data, size);
+}
+
+static void
+write_fifo(unsigned int adr, u_char * data, int size)
+{
+	outsb(adr, data, size);
+}
+
+/* Interface functions */
+
+static u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+	return (bytein(calc_off(cs->hw.spt.isac, offset)));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	byteout(calc_off(cs->hw.spt.isac, offset), value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	read_fifo(cs->hw.spt.isac, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	write_fifo(cs->hw.spt.isac, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return (bytein(calc_off(cs->hw.spt.hscx[hscx], offset)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	byteout(calc_off(cs->hw.spt.hscx[hscx], offset), value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) bytein(calc_off(cs->hw.spt.hscx[nr], reg))
+#define WRITEHSCX(cs, nr, reg, data) byteout(calc_off(cs->hw.spt.hscx[nr], reg), data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.spt.hscx[nr], ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.spt.hscx[nr], ptr, cnt)
+
+#include "hscx_irq.c"
+
+static void
+sportster_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char val;
+
+	if (!cs) {
+		printk(KERN_WARNING "Sportster: Spurious interrupt!\n");
+		return;
+	}
+	val = READHSCX(cs, 1, HSCX_ISTA);
+      Start_HSCX:
+	if (val)
+		hscx_int_main(cs, val);
+	val = ReadISAC(cs, ISAC_ISTA);
+      Start_ISAC:
+	if (val)
+		isac_interrupt(cs, val);
+	val = READHSCX(cs, 1, HSCX_ISTA);
+	if (val) {
+		if (cs->debug & L1_DEB_HSCX)
+			debugl1(cs, "HSCX IntStat after IntRoutine");
+		goto Start_HSCX;
+	}
+	val = ReadISAC(cs, ISAC_ISTA);
+	if (val) {
+		if (cs->debug & L1_DEB_ISAC)
+			debugl1(cs, "ISAC IntStat after IntRoutine");
+		goto Start_ISAC;
+	}
+	/* get a new irq impulse if there any pending */
+	bytein(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ +1);
+}
+
+void
+release_io_sportster(struct IsdnCardState *cs)
+{
+	int i, adr;
+
+	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, 0);
+	for (i=0; i<64; i++) {
+		adr = cs->hw.spt.cfg_reg + i *1024;
+		release_region(adr, 8);
+	}
+}
+
+void
+reset_sportster(struct IsdnCardState *cs)
+{
+	long flags;
+
+	cs->hw.spt.res_irq |= SPORTSTER_RESET; /* Reset On */
+	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
+	save_flags(flags);
+	sti();
+	current->state = TASK_INTERRUPTIBLE;
+	current->timeout = jiffies + 1;
+	schedule();
+	cs->hw.spt.res_irq &= ~SPORTSTER_RESET; /* Reset Off */
+	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
+	current->state = TASK_INTERRUPTIBLE;
+	current->timeout = jiffies + 1;
+	schedule();
+	restore_flags(flags);
+}
+
+static int
+Sportster_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	switch (mt) {
+		case CARD_RESET:
+			reset_sportster(cs);
+			return(0);
+		case CARD_RELEASE:
+			release_io_sportster(cs);
+			return(0);
+		case CARD_SETIRQ:
+			return(request_irq(cs->irq, &sportster_interrupt,
+					I4L_IRQ_FLAG, "HiSax", cs));
+		case CARD_INIT:
+			clear_pending_isac_ints(cs);
+			clear_pending_hscx_ints(cs);
+			initisac(cs);
+			inithscx(cs);
+			cs->hw.spt.res_irq |= SPORTSTER_INTE; /* IRQ On */
+			byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
+			return(0);
+		case CARD_TEST:
+			return(0);
+	}
+	return(0);
+}
+
+__initfunc(int
+get_io_range(struct IsdnCardState *cs))
+{
+	int i, j, adr;
+	
+	for (i=0;i<64;i++) {
+		adr = cs->hw.spt.cfg_reg + i *1024;
+		if (check_region(adr, 8)) {
+			printk(KERN_WARNING
+				"HiSax: %s config port %x-%x already in use\n",
+				CardType[cs->typ], adr, adr + 8);
+			break;
+		} else
+			request_region(adr, 8, "sportster");
+	}
+	if (i==64)
+		return(1);
+	else {
+		for (j=0; j<i; j++) {
+			adr = cs->hw.spt.cfg_reg + j *1024;
+			release_region(adr, 8);
+		}
+		return(0);
+	}
+}
+
+__initfunc(int
+setup_sportster(struct IsdnCard *card))
+{
+	struct IsdnCardState *cs = card->cs;
+	char tmp[64];
+
+	strcpy(tmp, sportster_revision);
+	printk(KERN_INFO "HiSax: USR Sportster driver Rev. %s\n", HiSax_getrev(tmp));
+	if (cs->typ != ISDN_CTYPE_SPORTSTER)
+		return (0);
+
+	cs->hw.spt.cfg_reg = card->para[1];
+	cs->irq = card->para[0];
+	if (!get_io_range(cs))
+		return (0);
+	cs->hw.spt.isac = cs->hw.spt.cfg_reg + SPORTSTER_ISAC;
+	cs->hw.spt.hscx[0] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXA;
+	cs->hw.spt.hscx[1] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXB;
+	
+	switch(cs->irq) {
+		case 5:	cs->hw.spt.res_irq = 1;
+			break;
+		case 7:	cs->hw.spt.res_irq = 2;
+			break;
+		case 10:cs->hw.spt.res_irq = 3;
+			break;
+		case 11:cs->hw.spt.res_irq = 4;
+			break;
+		case 12:cs->hw.spt.res_irq = 5;
+			break;
+		case 14:cs->hw.spt.res_irq = 6;
+			break;
+		case 15:cs->hw.spt.res_irq = 7;
+			break;
+		default:release_io_sportster(cs);
+			printk(KERN_WARNING "Sportster: wrong IRQ\n");
+			return(0);
+	}
+	reset_sportster(cs);
+	printk(KERN_INFO
+	       "HiSax: %s config irq:%d cfg:0x%X\n",
+	       CardType[cs->typ], cs->irq,
+	       cs->hw.spt.cfg_reg);
+
+	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 = &Sportster_card_msg;
+	ISACVersion(cs, "Sportster:");
+	if (HscxVersion(cs, "Sportster:")) {
+		printk(KERN_WARNING
+		       "Sportster: wrong HSCX versions check IO address\n");
+		release_io_sportster(cs);
+		return (0);
+	}
+	return (1);
+}