1 files changed, 317 insertions, 0 deletions

diff --git a/drivers/isdn/hisax/avm_a1.c b/drivers/isdn/hisax/avm_a1.c
new file mode 100644
index 000000000000..8f028d42fd2f
--- /dev/null
+++ b/drivers/isdn/hisax/avm_a1.c
@@ -0,0 +1,317 @@
+/* $Id: avm_a1.c,v 2.15.2.4 2004/01/13 21:46:03 keil Exp $
+ *
+ * low level stuff for AVM A1 (Fritz) isdn cards
+ *
+ * Author       Karsten Keil
+ * Copyright    by Karsten Keil      <keil@isdn4linux.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/init.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+extern const char *CardType[];
+static const char *avm_revision = "$Revision: 2.15.2.4 $";
+
+#define  AVM_A1_STAT_ISAC       0x01
+#define  AVM_A1_STAT_HSCX       0x02
+#define  AVM_A1_STAT_TIMER      0x04
+
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+static inline u_char
+readreg(unsigned int adr, u_char off)
+{
+        return (bytein(adr + off));
+}
+
+static inline void
+writereg(unsigned int adr, u_char off, u_char data)
+{
+        byteout(adr + off, data);
+}
+
+
+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 (readreg(cs->hw.avm.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+        writereg(cs->hw.avm.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+        read_fifo(cs->hw.avm.isacfifo, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+        write_fifo(cs->hw.avm.isacfifo, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+        return (readreg(cs->hw.avm.hscx[hscx], offset));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+        writereg(cs->hw.avm.hscx[hscx], offset, value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.avm.hscx[nr], reg)
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+avm_a1_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+        struct IsdnCardState *cs = dev_id;
+        u_char val, sval;
+        u_long flags;
+
+        spin_lock_irqsave(&cs->lock, flags);
+        while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) {
+                if (!(sval & AVM_A1_STAT_TIMER)) {
+                        byteout(cs->hw.avm.cfg_reg, 0x1E);
+                        sval = bytein(cs->hw.avm.cfg_reg);
+                } else if (cs->debug & L1_DEB_INTSTAT)
+                        debugl1(cs, "avm IntStatus %x", sval);
+                if (!(sval & AVM_A1_STAT_HSCX)) {
+                        val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA);
+                        if (val)
+                                hscx_int_main(cs, val);
+                }
+                if (!(sval & AVM_A1_STAT_ISAC)) {
+                        val = readreg(cs->hw.avm.isac, ISAC_ISTA);
+                        if (val)
+                                isac_interrupt(cs, val);
+                }
+        }
+        writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF);
+        writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF);
+        writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF);
+        writereg(cs->hw.avm.isac, ISAC_MASK, 0x0);
+        writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0);
+        writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0);
+        spin_unlock_irqrestore(&cs->lock, flags);
+        return IRQ_HANDLED;
+}
+
+inline static void
+release_ioregs(struct IsdnCardState *cs, int mask)
+{
+        release_region(cs->hw.avm.cfg_reg, 8);
+        if (mask & 1)
+                release_region(cs->hw.avm.isac + 32, 32);
+        if (mask & 2)
+                release_region(cs->hw.avm.isacfifo, 1);
+        if (mask & 4)
+                release_region(cs->hw.avm.hscx[0] + 32, 32);
+        if (mask & 8)
+                release_region(cs->hw.avm.hscxfifo[0], 1);
+        if (mask & 0x10)
+                release_region(cs->hw.avm.hscx[1] + 32, 32);
+        if (mask & 0x20)
+                release_region(cs->hw.avm.hscxfifo[1], 1);
+}
+
+static int
+AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+        u_long flags;
+
+        switch (mt) {
+                case CARD_RESET:
+                        return(0);
+                case CARD_RELEASE:
+                        release_ioregs(cs, 0x3f);
+                        return(0);
+                case CARD_INIT:
+                        spin_lock_irqsave(&cs->lock, flags);
+                        inithscxisac(cs, 1);
+                        byteout(cs->hw.avm.cfg_reg, 0x16);
+                        byteout(cs->hw.avm.cfg_reg, 0x1E);
+                        inithscxisac(cs, 2);
+                        spin_unlock_irqrestore(&cs->lock, flags);
+                        return(0);
+                case CARD_TEST:
+                        return(0);
+        }
+        return(0);
+}
+
+int __init
+setup_avm_a1(struct IsdnCard *card)
+{
+        u_char val;
+        struct IsdnCardState *cs = card->cs;
+        char tmp[64];
+
+        strcpy(tmp, avm_revision);
+        printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp));
+        if (cs->typ != ISDN_CTYPE_A1)
+                return (0);
+
+        cs->hw.avm.cfg_reg = card->para[1] + 0x1800;
+        cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20;
+        cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20;
+        cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20;
+        cs->hw.avm.isacfifo = card->para[1] + 0x1000;
+        cs->hw.avm.hscxfifo[0] = card->para[1];
+        cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800;
+        cs->irq = card->para[0];
+        if (!request_region(cs->hw.avm.cfg_reg, 8, "avm cfg")) {
+                printk(KERN_WARNING
+                       "HiSax: %s config port %x-%x already in use\n",
+                       CardType[card->typ],
+                       cs->hw.avm.cfg_reg,
+                       cs->hw.avm.cfg_reg + 8);
+                return (0);
+        }
+        if (!request_region(cs->hw.avm.isac + 32, 32, "HiSax isac")) {
+                printk(KERN_WARNING
+                       "HiSax: %s isac ports %x-%x already in use\n",
+                       CardType[cs->typ],
+                       cs->hw.avm.isac + 32,
+                       cs->hw.avm.isac + 64);
+                release_ioregs(cs, 0);
+                return (0);
+        }
+        if (!request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo")) {
+                printk(KERN_WARNING
+                       "HiSax: %s isac fifo port %x already in use\n",
+                       CardType[cs->typ],
+                       cs->hw.avm.isacfifo);
+                release_ioregs(cs, 1);
+                return (0);
+        }
+        if (!request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A")) {
+                printk(KERN_WARNING
+                       "HiSax: %s hscx A ports %x-%x already in use\n",
+                       CardType[cs->typ],
+                       cs->hw.avm.hscx[0] + 32,
+                       cs->hw.avm.hscx[0] + 64);
+                release_ioregs(cs, 3);
+                return (0);
+        }
+        if (!request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo")) {
+                printk(KERN_WARNING
+                       "HiSax: %s hscx A fifo port %x already in use\n",
+                       CardType[cs->typ],
+                       cs->hw.avm.hscxfifo[0]);
+                release_ioregs(cs, 7);
+                return (0);
+        }
+        if (!request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B")) {
+                printk(KERN_WARNING
+                       "HiSax: %s hscx B ports %x-%x already in use\n",
+                       CardType[cs->typ],
+                       cs->hw.avm.hscx[1] + 32,
+                       cs->hw.avm.hscx[1] + 64);
+                release_ioregs(cs, 0xf);
+                return (0);
+        }
+        if (!request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo")) {
+                printk(KERN_WARNING
+                       "HiSax: %s hscx B fifo port %x already in use\n",
+                       CardType[cs->typ],
+                       cs->hw.avm.hscxfifo[1]);
+                release_ioregs(cs, 0x1f);
+                return (0);
+        }
+        byteout(cs->hw.avm.cfg_reg, 0x0);
+        HZDELAY(HZ / 5 + 1);
+        byteout(cs->hw.avm.cfg_reg, 0x1);
+        HZDELAY(HZ / 5 + 1);
+        byteout(cs->hw.avm.cfg_reg, 0x0);
+        HZDELAY(HZ / 5 + 1);
+        val = cs->irq;
+        if (val == 9)
+                val = 2;
+        byteout(cs->hw.avm.cfg_reg + 1, val);
+        HZDELAY(HZ / 5 + 1);
+        byteout(cs->hw.avm.cfg_reg, 0x0);
+        HZDELAY(HZ / 5 + 1);
+
+        val = bytein(cs->hw.avm.cfg_reg);
+        printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+               cs->hw.avm.cfg_reg, val);
+        val = bytein(cs->hw.avm.cfg_reg + 3);
+        printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+               cs->hw.avm.cfg_reg + 3, val);
+        val = bytein(cs->hw.avm.cfg_reg + 2);
+        printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+               cs->hw.avm.cfg_reg + 2, val);
+        val = bytein(cs->hw.avm.cfg_reg);
+        printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+               cs->hw.avm.cfg_reg, val);
+
+        printk(KERN_INFO
+               "HiSax: %s config irq:%d cfg:0x%X\n",
+               CardType[cs->typ], cs->irq,
+               cs->hw.avm.cfg_reg);
+        printk(KERN_INFO
+               "HiSax: isac:0x%X/0x%X\n",
+               cs->hw.avm.isac + 32, cs->hw.avm.isacfifo);
+        printk(KERN_INFO
+               "HiSax: hscx A:0x%X/0x%X  hscx B:0x%X/0x%X\n",
+               cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0],
+               cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]);
+
+        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;
+        setup_isac(cs);
+        cs->cardmsg = &AVM_card_msg;
+        cs->irq_func = &avm_a1_interrupt;
+        ISACVersion(cs, "AVM A1:");
+        if (HscxVersion(cs, "AVM A1:")) {
+                printk(KERN_WARNING
+                       "AVM A1: wrong HSCX versions check IO address\n");
+                release_ioregs(cs, 0x3f);
+                return (0);
+        }
+        return (1);
+}