patch-2.0.36 linux/drivers/isdn/hisax/avm_a1p.c

• Lines: 332
• Date: Sun Nov 15 10:32:57 1998
• Orig file: v2.0.35/linux/drivers/isdn/hisax/avm_a1p.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.0.35/linux/drivers/isdn/hisax/avm_a1p.c linux/drivers/isdn/hisax/avm_a1p.c
@@ -0,0 +1,331 @@
+/* $Id: avm_a1p.c,v 1.1.2.3 1998/11/03 00:05:47 keil Exp $
+ *
+ * avm_a1p.c    low level stuff for the following AVM cards:
+ *              A1 PCMCIA
+ *		FRITZ!Card PCMCIA
+ *		FRITZ!Card PCMCIA 2.0
+ *
+ * Author       Carsten Paeth (calle@calle.in-berlin.de)
+ *
+ * $Log: avm_a1p.c,v $
+ * Revision 1.1.2.3  1998/11/03 00:05:47  keil
+ * certification related changes
+ * fixed logging for smaller stack use
+ *
+ * Revision 1.1.2.2  1998/09/27 13:05:33  keil
+ * Apply most changes from 2.1.X (HiSax 3.1)
+ *
+ * Revision 1.1.2.1  1998/07/15 14:43:26  calle
+ * Support for AVM passive PCMCIA cards:
+ *    A1 PCMCIA, FRITZ!Card PCMCIA and FRITZ!Card PCMCIA 2.0
+ *
+ *
+ */
+#define __NO_VERSION__
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+/* register offsets */
+#define ADDRREG_OFFSET		0x02
+#define DATAREG_OFFSET		0x03
+#define ASL0_OFFSET		0x04
+#define ASL1_OFFSET		0x05
+#define MODREG_OFFSET		0x06
+#define VERREG_OFFSET		0x07
+
+/* address offsets */
+#define ISAC_FIFO_OFFSET	0x00
+#define ISAC_REG_OFFSET		0x20
+#define HSCX_CH_DIFF		0x40
+#define HSCX_FIFO_OFFSET	0x80
+#define HSCX_REG_OFFSET		0xa0
+
+/* read bits ASL0 */
+#define	 ASL0_R_TIMER		0x10 /* active low */
+#define	 ASL0_R_ISAC		0x20 /* active low */
+#define	 ASL0_R_HSCX		0x40 /* active low */
+#define	 ASL0_R_TESTBIT		0x80
+#define  ASL0_R_IRQPENDING	(ASL0_R_ISAC|ASL0_R_HSCX|ASL0_R_TIMER)
+
+/* write bits ASL0 */
+#define	 ASL0_W_RESET		0x01
+#define	 ASL0_W_TDISABLE	0x02
+#define	 ASL0_W_TRESET		0x04
+#define	 ASL0_W_IRQENABLE	0x08
+#define	 ASL0_W_TESTBIT		0x80
+
+/* write bits ASL1 */
+#define	 ASL1_W_LED0		0x10
+#define	 ASL1_W_LED1		0x20
+#define	 ASL1_W_ENABLE_S0	0xC0
+ 
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+static const char *avm_revision = "$Revision: 1.1.2.3 $";
+
+static inline u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+	long flags;
+        u_char ret;
+
+        offset -= 0x20;
+	save_flags(flags);
+	cli();
+        byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_REG_OFFSET+offset);
+	ret = bytein(cs->hw.avm.cfg_reg+DATAREG_OFFSET);
+	restore_flags(flags);
+	return ret;
+}
+
+static inline void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	long flags;
+
+        offset -= 0x20;
+
+	save_flags(flags);
+	cli();
+        byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_REG_OFFSET+offset);
+	byteout(cs->hw.avm.cfg_reg+DATAREG_OFFSET, value);
+	restore_flags(flags);
+}
+
+static inline void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	long flags;
+
+	save_flags(flags);
+	cli();
+	byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_FIFO_OFFSET);
+	insb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
+	restore_flags(flags);
+}
+
+static inline void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+	long flags;
+
+	save_flags(flags);
+	cli();
+	byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_FIFO_OFFSET);
+	outsb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
+	restore_flags(flags);
+}
+
+static inline u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	u_char ret;
+	long flags;
+
+        offset -= 0x20;
+
+	save_flags(flags);
+	cli();
+	byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
+			HSCX_REG_OFFSET+hscx*HSCX_CH_DIFF+offset);
+	ret = bytein(cs->hw.avm.cfg_reg+DATAREG_OFFSET);
+	restore_flags(flags);
+	return ret;
+}
+
+static inline void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	long flags;
+
+        offset -= 0x20;
+
+	save_flags(flags);
+	cli();
+	byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
+			HSCX_REG_OFFSET+hscx*HSCX_CH_DIFF+offset);
+	byteout(cs->hw.avm.cfg_reg+DATAREG_OFFSET, value);
+	restore_flags(flags);
+}
+
+static inline void
+ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
+{
+	long flags;
+
+	save_flags(flags);
+	cli();
+	byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
+			HSCX_FIFO_OFFSET+hscx*HSCX_CH_DIFF);
+	insb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
+	restore_flags(flags);
+}
+
+static inline void
+WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
+{
+	long flags;
+
+	save_flags(flags);
+	cli();
+	byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,
+			HSCX_FIFO_OFFSET+hscx*HSCX_CH_DIFF);
+	outsb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
+	restore_flags(flags);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
+#define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt) 
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
+
+#include "hscx_irq.c"
+
+static void
+avm_a1p_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char val, sval, stat = 0;
+
+	if (!cs) {
+		printk(KERN_WARNING "AVM A1 PCMCIA: Spurious interrupt!\n");
+		return;
+	}
+	while ((sval = (~bytein(cs->hw.avm.cfg_reg+ASL0_OFFSET) & ASL0_R_IRQPENDING))) {
+		if (cs->debug & L1_DEB_INTSTAT)
+			debugl1(cs, "avm IntStatus %x", sval);
+		if (sval & ASL0_R_HSCX) {
+                        val = ReadHSCX(cs, 1, HSCX_ISTA);
+			if (val) {
+				hscx_int_main(cs, val);
+				stat |= 1;
+			}
+		}
+		if (sval & ASL0_R_ISAC) {
+			val = ReadISAC(cs, ISAC_ISTA);
+			if (val) {
+				isac_interrupt(cs, val);
+				stat |= 2;
+			}
+		}
+	}
+	if (stat & 1) {
+		WriteHSCX(cs, 0, HSCX_MASK, 0xff);
+		WriteHSCX(cs, 1, HSCX_MASK, 0xff);
+		WriteHSCX(cs, 0, HSCX_MASK, 0x00);
+		WriteHSCX(cs, 1, HSCX_MASK, 0x00);
+	}
+	if (stat & 2) {
+		WriteISAC(cs, ISAC_MASK, 0xff);
+		WriteISAC(cs, ISAC_MASK, 0x00);
+	}
+}
+
+static int
+AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	int ret;
+	switch (mt) {
+		case CARD_RESET:
+			byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
+			HZDELAY(HZ / 5 + 1);
+			byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,ASL0_W_RESET);
+			HZDELAY(HZ / 5 + 1);
+			byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
+			return 0;
+
+		case CARD_RELEASE:
+			/* free_irq is done in HiSax_closecard(). */
+		        /* free_irq(cs->irq, cs); */
+			return 0;
+
+		case CARD_SETIRQ:
+			ret = request_irq(cs->irq, &avm_a1p_interrupt,
+					I4L_IRQ_FLAG, "HiSax", cs);
+			if (ret)
+				return ret;
+			byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,
+				ASL0_W_TDISABLE|ASL0_W_TRESET|ASL0_W_IRQENABLE);
+                        return 0;
+
+		case CARD_INIT:
+			clear_pending_isac_ints(cs);
+			clear_pending_hscx_ints(cs);
+			inithscxisac(cs, 1);
+			inithscxisac(cs, 2);
+			return 0;
+
+		case CARD_TEST:
+			/* we really don't need it for the PCMCIA Version */
+			return 0;
+
+		default:
+			/* all card drivers ignore others, so we do the same */
+			return 0;
+	}
+	return 0;
+}
+
+__initfunc(int
+setup_avm_a1_pcmcia(struct IsdnCard *card))
+{
+	u_char model, vers;
+	struct IsdnCardState *cs = card->cs;
+	long flags;
+	char tmp[64];
+
+
+	strcpy(tmp, avm_revision);
+	printk(KERN_INFO "HiSax: AVM A1 PCMCIA driver Rev. %s\n",
+						 HiSax_getrev(tmp));
+	if (cs->typ != ISDN_CTYPE_A1_PCMCIA)
+		return (0);
+
+	cs->hw.avm.cfg_reg = card->para[1];
+	cs->irq = card->para[0];
+
+
+	save_flags(flags);
+	outb(cs->hw.avm.cfg_reg+ASL1_OFFSET, ASL1_W_ENABLE_S0);
+        sti();
+
+	byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
+	HZDELAY(HZ / 5 + 1);
+	byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,ASL0_W_RESET);
+	HZDELAY(HZ / 5 + 1);
+	byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET,0x00);
+
+	byteout(cs->hw.avm.cfg_reg+ASL0_OFFSET, ASL0_W_TDISABLE|ASL0_W_TRESET);
+
+	restore_flags(flags);
+
+	model = bytein(cs->hw.avm.cfg_reg+MODREG_OFFSET);
+	vers = bytein(cs->hw.avm.cfg_reg+VERREG_OFFSET);
+
+	printk(KERN_INFO "AVM A1 PCMCIA: io 0x%x irq %d model %d version %d\n",
+				cs->hw.avm.cfg_reg, cs->irq, model, vers);
+
+	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 = &AVM_card_msg;
+
+	ISACVersion(cs, "AVM A1 PCMCIA:");
+	if (HscxVersion(cs, "AVM A1 PCMCIA:")) {
+		printk(KERN_WARNING
+		       "AVM A1 PCMCIA: wrong HSCX versions check IO address\n");
+		return (0);
+	}
+	return (1);
+}